intrasystem electromagnetic compatibility analysis program
TRANSCRIPT
AD-A008 527
INTRASYSTEM ELECTROMAGNETIC COMPATI-BILITY ANALYSIS PROGRAM. VOLUME II.USER'S MANUAL USAGE SECTION
J. L. Bogdanor, et al
McDonnell Aircraft Company
Prepared for:
Rome Air Development Center
December 1974
DISTRIBUTED BY:
,fional Technical Informaton ServiceIJ. S- DEPARTMENT OF COMMERCE
UNCLASSIFIED _
SECURITY CLASSIFICATION OF THIS 'AGE (When D ot * E rtcred) READINSTRUCTIONSREPORT DOCUMENTATION PAGE B READ INSTRUCTIONSBEFORE COMPLETING FORM
I. REPORT NUMBER . 72 GOVT ACCESSION NO. 3.. TALOG NUMBER
R D - R 7 -4 ,Volume II (of 4 ) 1 04. TITLE (oa'd Subtitle) S. TYPE OF REPORT & PERIOD COVERED
iNTRASYSTEM ELECTROMAGNETIC COMPATIBILITY Final Report19 May 72 - 19 Nov 73ANALYSIS PROGRAM ______________
6 PERFORMING ORG. REPORT NUMBERVolume II - User's Manual Usage Section None
7. AUTHOR(&) 8. CONTRACT OR GRANT NUMBER(s)J.L. Bogdanor F30602-72-C-0277R.A. PearlmanM.D. Siegel
9 PERFORMING ORGANIZATION NAME AND ADDRESS 10. PROGRAM ELEMENT. PROJECT, TASKAREA & WORK UNIT NUMBERSMcDonnell Aircraft Company PE 62702F
McDonnell Douglas Corporation PO 427
Box 516, St. Louis, MO 63166 JO 45400127
II. CONTROLLING OFFICE NAME AND ADDRESS 12. REPORT DATE
Rome Air Development Center (RBCT) December 1974
Griffiss Air Force Base, New York 13441 13. NUMRF" -F PAGES
14 MONITORING AGENCY NAME & ADDRESS(If different from Controlling Office) 15 SECURITY CLASS. (of this report)
Same Unclassified
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16. DISTRIBUTION STATEMENT (of this Report)
Approved for public release. Distribution un'imited.
17. DISTR!BUTION STATEMENT (of the ahstract entered In Block 20, If different from Report)
Same
18. SUPPLEMENTARY NOTES
Reproduced by
None NATIONAL TECHNICALINFORMATION SERVICE
%IS D•o•n'rt of CommerceSo,,"tghl.. VA 22151
19 KEY WORCS fCont,:,ui on reverse side of r.ecessary ,id identify by block number)
Electromagnetic CompatibilityEleccromagnetic Interferenceradio Frequency 7nterferenceComputer Programs
20 ABSTRACT fContlnue on reverse side if neceosnry and icenrifv by block numoer)
This user's martual describes the operation and usage of the IntrasystemElectromagnetic Compatibility Analysis Program (IEMCAP). IEMCAP is a USAStandard FORTRAN program for computer-aided implementation of electromagnetic
Scompatibility (EMC) at all stages of an Air Force system's life cycle, applic-able to aircraft, space/missile, and ground-based systems. Extensive knowl-"edge of computers is not required to use the program and all Inputs are in
DD FJANO3 1473 EDITION OF N?.OV 65 IS OBSOLETE "C
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20. ABSTRACT (continued)
easy-to-use, free-field format."This volume, the Usage Section, contains detailed instructions for
usage of IEMCAP. A complete description of the input data requirements,formats, and rules for applying them are given. Instructions are also givenfor data setup and program execution for the various analysis tasks. ?Sampleoutputs are presented and described to aid in interpretation of analysisresults. An examp>e run is also presented in which a typical system isanalyzed. This shows how engineering data is converted into The IEMCAPinput format and gives samples from the resulting computer output.
Three appendices are provided. The first describes test methods foruse with the computer-generated EMC specification limits along with anexample. The second appendix describes a separate merge utility program.This program performs supplemental data file management which consolidatestwo files. The third appendix describes the usage of another separateprogram which provides supplemental irtermodulation frequency analysis.
p.
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1
•I PREFACE.)
This dncuments work conducted by McDonnell Aircraft Company, St. Louis,Missouri, on the Intrasystem Electromagnetic Compatibility (EMC) AnalysisProgram, sponsored by Rome Air Development Center, Griffiss Air Force Base,New York, under Contract F30602-72-C-0277, Job Order 45400127, from 19 May1972 to 19 November 1973. Mr. James C. Brodock (RBCT) was the RADCProject Engineer.
This volume, the Usage Section of the User's Manual, contains instruc-tions for preparing the Input data, running the program, nnd interpretingthe resulting output. Volume I, the Engineering Section of the User's
Manual, contains lescriptions of the program, its organization, analyticbasis, operating principles, and logic flow. Voltme III contains detaileddescriptions of all subroutines, variables and constants used in the pro-gram. Volume IV contains c-mplete FORTRAN source listings and detailedflow charts.
Contributions to this contract effort from Mrs. C.E. Clark, Mr. R.E.Plummer, Dr. C.D. Skouby, and Mr. G.L. Weinstock are gratefully acknowledged.
Information on these documents and on how to obtain a magnetic tapelisting of the program may be obtained from M. Brodock, RADC/RBCT, GriffissAFB, NY 13441.
This report has been reviewed by the RADC Information Office (01) andis releasable to the National Technical Information Service (NTIS). At NTISit will be available to the general public, including foreign nations.
This technical report has been reviewed and approved for publication.
APPROVED:
KTISC. BRODOCK
Project Engineer
APPROVED:i_ ) h(,V
XOSEPH J. NARESKYChief, Reliability ard Compatibility Division
FOR THE COMMANDER:
CARLO P. CROCETTIt Chief, Plans Office
! - -- ~ - ~ -- -~-
rI
TABLE OF CONTENTS - Volume II
Section Title Page
1 PRIMARY REQUIREMENTS 111.1 Progral, Operation Review 111.2 Compucer Requirements 121.3 Data Storage Files 14
1.3.1 Permanent Files 141.3.2 Working Files 171.3.3 Scratch Files 18
2 INPUT DATA REQUIREMENTS 192.1 Data Organization 192.2 Maximum System Size 202.3 Input Data Card Formats 21
2.3.1 Basic F-rmat 212.3.2 Control and Identification Cards 24
2.3.2.1 Execution Control Card (EXEC) 252.3.2.2 Title and Remark Cards 252.3.2.3 Comment Card 262.3.2.4 Output Control Cards 26
2.3.3 System Data 272.3.3.1 System and Basic Analysis Parameter
Card 272.3.3.2 Fuselage Model Parameter Card 282.3.3.3 Wingroot and Wingtip 30
2.3.3.4 Environmental Electromagnetic Fields 302.3.4 Common Model Parameters 32
2.3.4.1 Apertutes 3?2.3.4.2 Antenna Data 322.3.4.3 Filter Data 352.3.4.4 Wire Characteristics Table 36
2.3.5 Subsystem Data 37
2.3.5.1 Subsystem Card 372.3.5.2 Equipment 372.3.5.3 Spectrum Sample Frequency Table Data 332.3.5.4 Port Data 392.3.5.5 Source and Receptor Data 41
2.3.5.5.1 Radio Frequency 43
2.3.5.5.2 Power lines 462.3.5.5.3 Signal and Control Lines 472.3.5.5.4 Electro-explosive Device 492.3.5.5.5 Equipment Case Leakage 49
2.3.6 Wire Bundle Data 502.3.6.1 Bundle Card 502.3.6,2 Bundle Points and Coordinates 50
2.3.6.3 Bundle Segment 512.3.6.4 Wire 51
3 Preceding page blank
7 -7-7
TABLE OF CONTENTS - Volume II (Continued)
Section Title Page
2.3.7 Waiver Analysis Spectrum Shift Data 522.3.8 End of Data 522.3.9 TART Input Cards 52
2.3.9.1 TART Control Card 522.3.9.2 Additlional Input Card 53
2.4 Input Data Rules 542.4.1 General Rules 542.4.2 Alphanumeric ID's 552.4.3 Numeric Parameter Formats 552.4.4 Order of IDIPR Input Cards 552.4.5 Modifying the ISF 582.4.6 Additional Rules for Trade-off Runs 592.4.7 CFAR Waiver Analysis Run 60
3 RUNNING IEMCAP 613.1 IEMCAP Run Options and Control Parameters 61
3.1.1 Options on EXEC Card 613.1.2 Input and Speccrum Processing (ISP) Runs 623.1.3 Specification Generation Runs 633.1.4 Baseline EMC Survey Runs 643.1.5 Waiver Ai&,lysis Runs 643.1.6 Trade-off Analysis Runs 61,
3.1.7 Additional IDIPR Options 653.1.8 Additional TART Options 65
3.2 Job Setup 663.3 Restart Capability 67
4 PRINTED OUTPUTS 744.1 IDIPR Printed Outputs 74
4.1.1 Error Messages 744.1.2 Input Data Card Listin; 744.1.3 Intrasystem Signature File Report 744.1.4 Debug Printout 76
4.2 TART Printed Outputs 764.2.1 Specification Generation Outputs 76
4.2.1.1 Adjusted Emitter Spectra Summary 764.2.1.2 Recertor Spectrum Adjustment Summary 794.2.1.3 Unresolved Interference Summary 794.2.1.4 Finally Adjusted Port Spectra 79
4.2.2 Baseline System FMC Survey Outputs 794.2.3 Trade-off and Waiver Outputs 854.2.4 Supplemental Outputs 85
4,2.4.1 Antenna-to-Antenna CouplingSupplemental Outputs 85
S) TABLE OF CONTENTS - Volume Ii (Continued)
Section TI Lle
4.2.4.2 Antenna-to-Wire Coupling SupplementalOutputs 94
4.2.4.3 Wire-to-Wire Coupling SupplementalOutputs 94
4.3 Error Cond.tion Codes 984.3.1 iDIPK Errors 984.3.2 TART Errors 98
5 EXAMPLE TEST CASE 1095.1 Mini-System Description 1095.2 IEMCAP Run for Mini-System 115
6 PROGRAM OPERATION 1526.1 Program Implementation 152
6.1,1 Storing the Source Program 1526.1.2 Compiling the Irogram and Storing Binary
Output 1526.1.3 Executing the Prcgram 1526.1.4 Defining Data Sets 1536.1.5 Froviding for Outputs 153
6.2 Maintaining Computer Program Operation 153S6.3 Terminate and Restirt 1536.4 Source File Updating 155
Appendix A Computer Generated rest Methods 156I Appendix B MERGE Utility Program 177
Appendix C IMOD Utility Program 187
i5
eib
LIST OF FIGUJRES - Volume II
Figure Title
1 IM1CAP Computer Resources 1.3
2 Data Input Example 22
3 Basic Fuselage Parameters (Flat Bottomed Cylinder) 29
4 Wing Point Location 31
5 Look Angle 6 and ý in Spherical Coordinate System fromAntctnna at Origin to P(X,Y,Z) 33
6 Port Termination Impedance Configuration 42
7 Order of IDIPR Data 56
8 Input Lind Spectrum Processing (ISP) Run 68
9 Specification Generation Run (New System) 69
10 Waiver Analysis Run 70
11 Trade-off Run 73.
12 Survey Run 72
13 Example IDIPR Error Diagnostic Outputs 75
14 Sample Output-SGR Adjusted Emitter Spectra 77
15 Sample Output-SGR Receptor Spectrum Adjustment 80
16 Sample Output-SGR Unresolved Interference 81
1/ Sample Output-CEAR Survey Port Pair EMI Summary 83
18 Sample Output-CEAR Survey Total Signal EMI 86
39 Sample Output-CEAR Trade-off or Waiver Analysis 87
20 Sample Output-CEAR Trade-off or Waiver Analysis TotalSignal EMI 89
21 Sample Antenna-to-Antenna Coupling Supplemental OutputBasic Format 90
6
k6
LIST OF FIGURES - Volume II (Continued)
Figure Title Page
22 Sample Antenna-to-Antenna Coupling Supplemental Output
With Wing Shading 95
23 Sample Antenna-to-Wire Coupling Supplemental Output 96
24 Sample Wire-to-Wire Coupling Supplemental Output 97
25 Mini-System Basic Schematic Diagram Ill
26 Mini-System Nire Bundle Routing Diagram 112
27 Broadband Equipment Case Emission Spectrum for "UHFCO" 112
28 Detail of Port "COMLO" 113
29 Emission Spectrum of Port "COMLO" 113
30 Susceptibility Spectrum of Port "COMLO" 114
31 Data Input for Mini-System 116
32 System Data-IDIPR Output for Mini-System 119
33 Subsystem Data-Sample IDIPR Output for Mini-System 121
34 Frequency Table-IDIPR Output for Mini-System 124
35 Initial Port Spectra-IDIPR Output for Mini-System 125
36 Wire Bundle Data-IDIPR Output for Mini-System 1Z9
37 TARIT Output for Mini-System Title Page 130
38 TART Output for Mini-System IUHFCO Equipment Case 131
39 TART Output for Mini-System RCPT = UHFCO COMLO 132
A-1 Conduc:ted Emission Test Setup 165
A-2 Block Diagram Key-Down Tests 166
A-3 Radiated Emission/Susceptibility Test Setup 167
A-4 Conducted Susceptibility Test Setup 168
A-5 EMI Narrowband Specification Limit-TACAN Power 169
7
4(~~4
LIST OF FIGURES - Volume II (Continued)
Figure Title Page
A-6 EMI Broadband Specification Limit-TACAN Power 169
A-7 EMI Narrowband Specification Limit-TACAN Bearing andHeading 170
A-8 EMI Broadband Specification Limit-TACAN Bearing andHeading 170
A-9 EMI Narrowband Specification Limit-TACAN Audio 171
A-10 EMI Broadband Specification Limit-TACAN Audio 171
A-li EMI Narrowband Specification Limit-TACAN RF 172
A-12 EMI Broadband Specification Limit-TACAN RF N 172
A-13 EMI Narrowband Radiation Limit-TACAN Case 173
A-14 EMI Broadband Radiation Limit-TACAN Case 174
A-15 Conducted Susceptibility Limit-TACAN RF 175
A-16 Susceptibility Limit-TACAN Power 175
A-17 Radiated Susceptibility Limit-TACAN Case 176
Ii8
. I
LIST OF TABLES - Volume II
Table Title Pag£
1 Execution Times and Size of Permanent and Work Filesfor Sample Runs 15
2 Files Used by IEMCAP 16
3 Maximum System Size 20
4 Keywords 23
5 Wing Antenna Code (LWA) 91
6 Shading/Path Around Vehicle Code (ISH) 92
7 Wing Edge Code 92
8 Antenna-Fuselage Code, Xmtr Ant to Wing (IROX) andAntenna-Fuselage Code, Wing to Rcvr Ant (IRO) 93
9 IFEMCAP Alpha ID Internal Code 99
10 IDIPR Errors 100
11 TART Errors 104
12 Mini-System Aircraft Parameters 110
B-i Merge Data Blocks 179
B-2 Basic System Data 181
B-3 Example Input 185
C-I Third Order Intermodulation Indicies Considered forTwo Transmitters 187
C-2 Input Card Formats 188
C-3 Sample Input Data 188
C-4 Sample Output 189
9
jISection I
PRIMARY REQUIREMENTS
This volume contains detailed information for the usage of IEMCAP.Procedures and formats are given for preparing the input data, executingthe program, and interpreting the resulting output. Computer requirementsand resources as well as program setup are also discussed. An example testcase is included to further illustrate the program use.
1.1 PROGRAM OPERATION REVIEW
The first step in using IEMCAP is to assemble the appropriate datafor the system to be analyzed. This data is then prepared for punchedcards, which are then fed into the Input Decode and Initial ProcessingRoutine (IDIPR) section of IEMCAP.
IDIPR consists of two major parts. The first (Input Decode or IPDCOD)decodes the punched cards and checks for errors. If an error is detected
an appropriate diagnostic message is printed, the card is deleted (i.e.,assumed not to have existed), and the program continues processing the restof the data. The program normally stops after all data has been read ifthere were errors, but this may be overriden if desired.
If there were no input card errors, the Initial Processing Routine (IPR)section of IDIPR is entered. If this is the first run for the system, thespectrum math models are accessed for each port. These use the user--supplied
spectrum parameters to generate the iequired and initial non-required spectra.The processed user and spectrum data is written on a permanent magnetic tape
or disk file called the Intrasystern File or Intrasysten, Signature File (ISF).This ISF can be used as input for subsequent runs, either as is or modifiedby additional card inputs; and a new ISF can be generated containing themodifications. Thus, an updated ISF can be maintained if the system design
is changed. The data is also written on a number of working files for useby the Task Analysis Routine (TART) section of IEMCAP, and a printed reportof the data is also geAerated.
The TART section of IEMCAP performs the four basic analysis tasks.These tasks, which are discussed in detail in Volume I, are summarizedbelow:
o Specification Generation - Adjusts the initial non-required emissionand susceptibility spectra such that the system is compatible.The user-specified adjustment limit prevents too stringent adjust-ments. A summary of interference situations not controllable byEMC specifications is printed. The adjusted spectra are the maximumPmission and minimum susceptibility specifications for use in EMCtests. (See Appendix A for test proccdures.) Analysis results arevritron en the Baseline Transfer File (BTF) for subsequent runs.
Preceding page blank
11 . I I ! I I
IVA
o Baseline System EMC Survey - Surveys the system for interference.If maximum of the EMI ;aargin over the frequency range for a ccupledemitter-receptor port palr exceeds the user-specified Trinrouclimit, a summary of the iuterference is printed. Tota; receivedsignal into each receptor from all emitters is also printed. Theanalysis results are written on the BTF for subsequent rans.
o Trade-off Analysis - Compares the interference for a modifiedsyst~an to that stored on the BTF from a previous specificationgeneration or survey run. Thus, the effect on interference ofantenna changes, filter changes, spectrum parameter changes, wirechanges, etc. can be assessed.
o Specification Waiver Analysis - Shifts portions of specific po-cspectra as specified and compares the resulting interference tothat stored on the BTF. Thus, the effect of granting waivers forspecific ports can be assessed.
TART is composed of two basic routin-s. The Specification Generation
Routine (SGR) performs the first task above, and the Comparative EMI AnalysisRoutine (CEAR) performs the remaining three. These interface with thecoupling math model routines to compute the transfer ratios between emitterand receptor ports.
1.2 COMPUTER REQUIREMENTS
The two parts of IEMCAP are executed separately with data files usedfor intermediate storage between parts. Computer resources used areillustrated in Figure 1.
Central Processing Unit (CPU) core memory to load and execute each partof IEMCAP on a CDC 6600 using the Fortran Version 2.3 compiler are asfollows:
IDIPR - 64K words (decimal)TART - 67K qords (decimal).
These include input!output buffer storage of 1K per file.
The zomptiter must have sdfficient file storage for 4 permanent andT0 working foies, in addition to normal csrd input and printed output.
The permanent files can be either disk or tape. For the working files, diskshould be used because of the number of files and large number of accessesper run. All files are sequential so that random access software is notrequired.
12
TAPE
CARD PERMANENTREADER DISK
rF-CENTRAL
PROCESSINGUNIT
-' ITEMPJRARY
ANDWORK DISK PR;.NTER
F I LES
FIGURE 1IEMCAP COMPUTER RESOURCES
13
The amount of file space needed depends on the size of the system being
analyzed. Except for the BTF, the size depends primarily on the number ofports. The size of the BTF depends on the number of coupled port pairs sinceit stores the analysis results.
The execution time also depends on the system size. IDIPR time isapproximately 0.1 second per input card. TART run time primarily dependson the number of coupled port pairs. This potentially increases as thesquare of the number of ports. In general though, each emitter port willnot be coupled to each receptor port so the actual time will be less. Also,the TART time depends on the analysis task. Specification generationrequires three pas. ýs through the emitters per receptor with two passesthrough the receptors per run ýnd hence runs longer than the other tasks.Table 1 gives the run times and file sizes for two test cases run on theCDC 6600. Case 1 is the "mini system" rest case presented in Section 5.
1.3 DATA STORAGE FILES
As discussed above, IE4CAP uses a numter of data files. In Table 2these files and the input and output are sutnmarized. Each physical fileand device is assigned a logical unit number which is stored in each sectionof the program as a mn~emonic variable name. For example, in the CDC 6600the card input is designated as logical unit number 5. In ID!PR and TART,
1 I the variable INN is set to 5, and all card input read statements referenceINN. If in a particular computer, the card reader is a different unitnumber, all card inputs can be changed to this unit number by changing INN.The logical unit numbers are usually assigned to files in the computer jobcontrol cards. (See Section 3.2.) Also, note that a number of files areassigned to the same logical unit. This allows multiple usage of thesame physical file space.
The files are categorized as permanent. working and scratch. Per-arnentfiles are used to store data and analysis results for use in subsequent runs.Working or intermediate files provide temporary storage for the data in aform for efficient use by the various routines. They also provideintermediate data storage between IDIPR and TART. Scratch files are usedfor temporary storage within IDIPR and TART.
1.3.1 Permanent Files
These files are generally saved after a run or are input from aprevious run. They are the old and new (updated) intrasystem SignatureFiles (also called the Intrasystem File or ISF) and the Baseline Transferfile. A description of these follows:
Old Intrasystem Signature File (Old ISF). This is an input filecreated during a previous run either by IDIPR or TART. It contains datadefining the system being analyzed including user-defined input parameters,processed data, and port spectra. It may or not be present for a given run.If not present, the system is defined by card input only. If present, the
14
) TABLE 1
S: EXECUTION TIMES AND SIZE OF PERMAINENT AMD WORK FILES FOR SAMPLE RUNS
TEST CASE I'TEST CASE 2
DATA CASE SIZE
Total No. CardsInput to IDIPR 170 24.1
Total No. Ports 33 56
I EX�ECUTION TIMES
Execution time IDIPR 17.4 sec 24.5 secExecution time TART-SGR 176 sec 186 sec
FILE SIZE IN WORDS (Decimal)
New ISF 10,862 16,000Baseline Transfer File 35,000 41,000Emitter Spectrum 3012 4200Receptor Spectrum 1792 2670Emitter Equipment ]634 2350Receptor Equipment 1631 2380Wire Bundle 97 40G,Wire Map 640 2390Array 183 300PIF 3000 4200
NOTE: All figures are based on, executions on a CDC 6600
15
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old ISF data may be analyzed as is or m,.dified by additional card inputs.A user can have as many different ISF's as desired, aithough only one isused as input per run,
New Intrasystem Signature File (Generated by iD1PR). This is arL outputfile created by IDIPR from the card inpwc data or irom an old ISF modifiedby card input. The format is identical to the old ISF described above.It is used as input for TART.
New Intrasystem Signature File (Generated by TART). This is an outputfile created by TART during specification generation runs. It is identi-cal to the above new ISF except that it contains the adjusted port spectra.
Baseline Transfer File. This file is built by TART during SGR or
survey runs and eonitains the received signals, transfer ratios, and EMI
margins for all coupled port pairs and from the total signal and environ-mental field into each receptor at all irequencies. This is an input toTART for waiver analysis and trade-off analysis runs.
1.3.2 Working Files
These files may or may not be saved for a given run. This would dependon whether IDIPR and TART are run independently or are run consecutively asone Job. If run separately, for example to check the input data for errorsonly, the working files must be saved for TART. The workiig files can alsobe saved for restart in the event of errors. (See Section 3.3.) ThesEfiles are as follows:
Unadjusted Emitter Spectrum File (UESF). This file, as built duringinitial processing, contains the initial broadband and narrowband spectrafor all emitter ports. During specification generation runs, SGR adjuststhese spectra and writes them on the Adjusted Emitter Spectrum File (A,5SF).After all emitters have been examined and adjusted in conjunction with agiven receptor, the AESF and UESF are swapped, and the process is repeatedfor the next receptor. For analysis tasks other than SGR, the UESF if; usedonly as input by TART since no spectrum adjustments are made.
Unadjusted Receptor Spectrum File_(URSF). This file is the same asthe UESF above except it contains receptor port spectra.
Emitter Equipment Data File (EEDF). Thi3 file is built during in.tialprocessing containing all equipment and port parameters, except the spettraand spectrum pointers, for emitter ports. Because TART selects a receptorand analyzes all emitter ports against it, equipment data is written onseparate files for emitters and receptors for efficient processing. If agiven port is both an emitter and receptor, the data is on both files.
Receptor Equipment Data File (REDF). This is the same as the EEDFabove except it contains receptor data.
17
Wire Bundle File (WBF). This file, built during initial processing,
contains all wire bundle data for the system. This data is in the formspecified i.n the IDIPR input data.
Wire Map File (WMF). This Uile, built during initial processing,contains processed wire bundle data inL the form of cross-reference maparrays relating the wires, segments, and ports. This data is used as inputto the wire-to-wice and field-to-wire transfer model routines in TART.
Arrýy. This file, built during initial processing, contains basicsystem data, control flags, data change codes, and other data for use byTART.
1.3.3 Scratch Files
These files are used completely within TDIPR or TART for temporarydata storage. They are generally not saved after a run, but some sharethe same physical file as a permanent or work file which is saved. ThePIF may be saved for restart. These files are as follows:
CARDIN. This file is used by IDIPR to store the card images of theinput cards during input decode. It is later overwritten and used a,; theWire Map File.
Processed Input File (PIF). This file is built by IDlPR diring input
decode. For new jobs (no old ISF exists), the format of the PTF is thesame as the ISF except there are no emitter and receptor spectra. Formodify jobs, the system data is not written on the PIF, but the equipment andwire bundle data is written in the same format as on the ISF. The PIF maybe saved for restart as discussed in Sections 3.1 and 3.3.
Adjusted Emitter Spectrum File (AESF). This file is used by TART duringspecification generation and contains the adjusted spectra for the emitterports. The logical unit switches back and forth between AESF and UESF fileseach time the emitter spectra are re-adjusted as discussed above for theUESF.
Adjusted Receptor Spectrum File (ARSF). This file is the same as theAESF except that it contains the adjusted receptor spectra.
SGR Scratch File (SCRF). This is used during specification generationto store adjusted emitter spectra and transfer functions used in the deter-mination of unresolved interference. The logical unit used is the cne whichwas not used to store the final adjusted emitter spectra.
Scratch Transfer File (SCHTR). This file is used by TART duringspecification generation and contains the transfer ratio from each coupledeaitter into the receptor at each frequency.
18
A:
Section 2
INPUT DATA REQUIREMENTS
2.1 DATA ORGANIZATION
The input data directs the program and defines the system to 5e ana-lyzed. All directives and data discussed below are inputteO 'Zj IOIPR. TART
has only one mandatory input card and one optional card on which basic para-"meters specified to IDIPR may be overridden.
The program directives specify the analysis task and the form of inputand output for the run. They also supply a title and remarks which are in-cluded in the printed output to identify the run.
The rest of the data defines the system to be analyzed and is organizedinto three basic categories: 1.) system data, 2.) subsystem data, and3.) wire bundle dara. Each of these categories is organized into a hierarchy.
The system data defines the system type (aircraft, spacecraft, ground)overall physical dimensions, coordinate system parameters, and basic analysisparameters applying to the entire system. It also includes common -. elparameter tables. These tables contain basic paran'eters for aperr.1res, an-tennas, filters, and wire cnaracteristics which have multiple .sr. throughoutthe system. They are referenced at the port level so that the basic para-meters are specified only once. For example, assume a partircular antennatype is used for 20 ports in the system. The antenna physical dimensions,main beam shape, gain, etc. are specified in the system data along with an
A ,identifying name. In the port data, this name is referenced, and only theantenna coordinates and main beam orientation are specified for each ofthe 20 ports using the antenna.
The subsystem data is organized into the heiarchy diL.'us',.' in VolumeThe heirarchy is summarized here for reference:
"Subsystem. A subsystem consists of well defined parts of a systemusually performing a related task. A radar package and a central com-puter complex are examples of subsystems. This level is defined forconvenience in organizing the data and is no, a functional level withinthe program. Hence, equipments need not be specified with referen:.e toa subsystem.
Equirent. An equipment is a physical box mounted in the system, suchas i transmitter unit.
1ort. A port is a point of entry or exit of electromagnetic energy froman equipment. A port may be connected to an antenna or to a wize.Leakage into and out of the equipment case is also a port. A port maybe designated as a source (emitter), a receptor, or both. The analysesare performed on a port-to-port basis. All ports within the samn;: equip-ment are assumed compatible with each other.
19
Source. it source is a port which emits electromagnetic energy. The
tarms source and emitter are used interchangeably throughout theprogram.
Receptor. A receptor is a port which is susceptible to electromagneticenergy.
Wire bundle data is also organized into a heirarchy, which allows complexwire routings to be analyzed. The componento are as follows:
Bundle. A bundle is a group of wires which, for some portion of theirTe-nrgiths, run parallel to each other.
Bundle point. A point in the system at which a bundle branches orchanges direction. Between points wires are assumed to run in straightlines, and no branching occurs.
Segment. A segment is a section of a bundle running between points.Segments are designated by giving the bundle points. Within a segmentthe wires are assumed to run parallel. A segment may also run by adielectric aperture and be exposed to energy ftom exte,'nal antennas andenvironmental electromagnetic fields.
Wire. k wire connects two or more ports. Its routing is specified bydesignating the bundle points through which it passes for which segmentshave been defined. Care must be taken that a wire routing not closeon itself or an error will result. The wire physical parameters aregiven by referencing the Wire Characteristics Table, which is specifiedat the system level.
2.2 MAXIMUM SYSTEM SIZE
The capacity of IEMCAP with regard to system size is given in Table 3.
TABLE 3
V= MAXIMUM SYSTEM SIZE
EQUIPMENTS 40PORTS PER EQUIPMENT 15TOAL PORTS (40 X 15) 600APERTURES i 10ANTENNA TYPES 50FILTER TYPES 20WIRE BUNDLES 10SEGMENTS PER BUNDLE 10WIRE PER BUNDLE 50
20
2.3 INPUT UAiA CARD FORMATS
2.3.1 Basic Format
The user input format provides an easy-to-use and flexible means ofspecifying the diverse types of data required by IEMCAP. Examples of IEMCAPinpuz. cards are listed in Figure 2. The format is easy to learn, and param-eters are in units in which the engineering data is commonly available cnaerospace systems. These are converted by the program to the units requiredby the models.
Except for TITLE and REMARK cards, inputs are free field. That is,parameters can be punched into any columns of the cards. Blanks are ignoredso the entries may be indented and the parameters grouped as desired forclarity. A card may be continued on the next provided the last nonblankcharacter on the card to be continued is a comma.
The inputs are in the form of statements, the general form of which is
KEYWORD (MODISF) = ID, PI' P2 9 P3 P . P
where.
KEYWORD - denutes the type of data on the card. It must beone of the specific keywords given in Table 4. Itmay be abbreviated using the first two letters, ifdesired.
MODISF - optional code used only for modify runs. It indicatesthe type of change to the data from the old ISF (add,delete, or modify). See Section 2.4.5.
ID - alphanumeric identification used to denote a speci-fic e4uipment, port, wire, etc. It may be any combina-
tion of up to five letters and digits, the firstcharacter being a letter. ID is not given for some
keyword types.
Pl' P2: ''. P n - parameters associated with the keyword type as spe:i-fied in the following sections. The number of para-meters (n) is fixed for most keyword types. Forothers a minimum is required (Table 4). The parametersare given in the order specified for the keyword type.The parameters are numbers, alphanumeric codes, orID's as specified.
For some keyword types, some of the parameters may be followed by avariable number of subparameters in parenthesis. The group of subparametersis counted as one parameter. For example,
r- P4
KEYWORD (MODISF) = ID,P 1 ,P2 ,P3 ,(spl,sp2 ,sp 3,...),P 5
21
INPUT CAufls
~ I qE$4APKz FILF li,=rrOT4m IOORFCTEIJ 'RAIELINE SYSTEMI.EXS'ti cqEWOU=t40
WNG'RT=559J2122594156WG1!TO-230,15~435,4Q3
EFO= 1lE3,1O0E3T4EeqiaoE6,F9,4F`q0E=309,30 t40941.0,30 ,30TE=-20,-20,5, ~j,-2O,p-20APER=NSFMN q,0,0,f,35,r~qmOwAPER=TOPCI',G,"P.2,332.5,3&gi0,NOWANT=COITA,nlIPaLEVEq(.2C1%NT4=CwMAfF,LOflP,H'!, (.25)ANrT=TSPOT'PnLf-tVE,(.0*)RtfT=POOHQHCqN,HZ,( .j0,'.5,30,30,-5,9O,-20)a NT= PD OMN ,nfTP CL.E , yE,(.*D)ANT=ALT4q9uOR*,7 .,.,5,,,410"FTLTERzFLTD1,SGTIJN,1,(30G.E6,j.E3,-j,-9MO)
FILTEDFLTrR3,I3UTTEItr,% (C1.O5Eq,.1Er6,-I,-80)
FILYrEP=FLTP5,NPAS,., 4(. 05EP,-I,-80)F! LTER2FL TR6 , PAS ,, * q=ES 4. 05FS,1-I, N )FIL7,FQ=FLTQ7,8tUiCT,iC,(4.UiE6g,8.E6,-1,-A0)
WDB=SC ~'M1,30 1c,2. 'I ,,66,6
WRTqL=SPf!CC90,flsv30,j62 tZ9~ 6,43,,.S(JeSvYS;=NI
EOPT=UHFCO,%46I,aDJUST,A~rTTp, wO4E,21.;,23,i8G('OMW4FNT=U"F COMM4
FRFQ=30vt8.lE991v35PoQT~raSF, 0, 0
42r,, i.Eq,-24..6)
PTOt?T=1OM,aNT,(fnOMTa,0,0,,0,R6,N4OW) ,50,0,0,0,0 ,FLTQ2
OCFO?=OF, 30.,~??Ef~,3Q9,.9V6,-1O Ga ,O.E3,A"1(iIOI!E,5.E3,O) ,i.EF,I I ~PflQT=COnmP,ANT,(Cfl4TA,0,O,O,I35,62',OýIOW) ,5),0,C,0,0 ,FLTRJ.5 I I0CE=0 F, 3C.922 E%-391.qE%,100.,-O.E3,A'(Vojr'E,C.E3,I) ,(-50,-1120)
VQ!OTRPF, 30,2E,3Q.E9105.3 MVTF5E ,01.E5
SOU'ieE~lTGN&t, 3e.,?0.E3,4.Eý.sPEr'TOL( 20.E3,1.E-f5) 10,VLTS,'..EC6
PCO=TNL3,'.-,2 )EtrP(.3.--3,I0,VLT%'.4.F5rrn'4PFNT=TACBN
F'ýVf)30,17j*E4,j, 3
P OQT=CAS Ct¶.OLUOE~rSE,30,t'TLIZFC,,'IlLcfPCFO'r=CASE, 30,14TLcFr,"It'ýC
PfD= CPAT "~, 00Al34MW ~ ,L, C ,FLTR3!:nUorE=91QF3,10 .6t3Ft5og7E,~~r"rT'93,.E6g-0-
FIGURE 2DATA INPUT EXAMPLE
22
TABLE 4 KEYWORDS
MAXTMUM
NO. OF NO* CARD FORMATKEYWORD ENTRIES ?AF!VM4&TZRS IN SECTION DESCRIPTION
ANT 50/RUN 4 2.3.4.2 Antenna common modelAPER 10/RUN 7 2.3.4.1 Aperture common modelBPTS l/BUNDLE 8 2.3.6.2 Bundle end pointsBSEG 1/BUNDLE - 5 2.3.6.3 Bundle segment
BUNDLE 10/RUN 1 2.3.6.1 Bundle headerCOMMENT - 2.3.2.3 General commentEFQ 1/RUN z 2 2.3.3.4 Environmental field frequenciesEODATA 1/RUN 0 2.3.8 End of dataEQPT 40/RUN 8 2.3.5.2 Equipment headerEXEC l/RUN > 1 2.3.2.1 Execution controlFILTER 20/RUN 4 2.3.4.3 Filter common modelFQTBL I/EQPT, 1 2.3.5.3 User frequencies in tableFREQ 1/EQPT 3 2.3.5.3 Frequency table parametersFUSLGE 1/RUN 6 2.3.3.2 FuselageIEFL l/RUN > 2 2.3.3.4 Internal environmental fieldLIST l/RUN 2 2.3.2.4 List controlOEFL 1/RUN a 2 2.3.3.4 Outside environmental fieldOUTPUT 1/RUN a 1 2.3.2.4 Output controlPORI 15/EQPT 1 1 2.3.5.4 Port dataREMARK 5/RUN 1 2.3.2.2 General remarksRCEPT I/PORT • 4 2.3.5.5 Receptor spectrum parametersSOURCE 1/PORT > 4 2.3.5.5 Source (enmitter) spectrum
parametersSUBSYS • 1 1 2.3.5.1 Subsystem headerSYSTEM 1/RUN 6 2.3.3.1 System and basic run parametersTITLE 2/RUN 1 2.3.2.2 Run titleWAIVER 50/RUN > 9 2.3.7 Waiver analysis dataWGTIP 1/RUN 4 2.3.3.3 Wing tip coordinatesWIRE 50/BUNDLE £ 4 2.3.6.4 Wire data for bundleWNGRT I/RUN 4 2.3.3,3 Wing root coordinates
WTBL 20/RUN 7 2.3.4.4 Wire characteristics table
* NOTE: "a" indicates a minimum number. Otherwise the exact number of
parameters must be given.
23
T tota nme or
in which the subparameter group counts as one parameter (N4 ) so that thetotal number of parameters is 5. An error results if an incorrect number ofparameters is given. Zero or a valid code must be given for unused parametersas placeholders. (See Rule 6, Section 2.4.1)
As an example use of the input format, consider the keyword type FUSLGEas defined in Section 2.3.3. Assume the values to be specified are as follows:
Conical nose limit = 165.0Fuselage radius = 56.5Core radius = 18.8Centroid water line = 25.0Bottom water line = 12.0Type of cylinder bottom = FLAT
The resulting IEMCAP input card would contain
FUSLGE = 165, 56.5, 18.8, 25, 12, FLAT
(If not given, the decimal point is assumed to the right of the number.)Complete rules lot the input are given in Section 2.4.
Certain keywords, such as FUSLGE, are used only once in a run; andothers, such as ANT, may occur several times. For discussion purposes,the first is called a single entry keyword, and the second is called amultiple entry keyword. Every multiple entry keyword has an ID associatedwith it, either explicitly or implicitly. An ID is explicitly given when itappears after the equals sign on the card itself. All ID's are explicitlygiven except for certain hierarchical data where the ID is implicitly givenby the proceeding card or cards. Certain keyword cards, such as the equip-ment cards, have both an explicit ID (the equipment ID) and an implicit ID(tbe subsystem ID). Some keywords have more than one implicit ID. Forexample, a PORT card has two implicit ID's (the equipment ID and the sjb-system 1D) as well as an explicit ID (the port ID). Both types of ID playan important part in the modification process. In general, data given inorder of the heirarchy have as implicit ID's thcse of the preceding higherlevel WD's.
The card formats associated with all keyword types are described inthe following sections. The general form for each is given along with theparameters and subparameters to be supplied. The following convention isused below in describing them:
CAPITOL LETTERS - user-supplied alphanumeric ID
UNDERLINED CAPITOL LETTERS - one of the specific alphanumeric codesgiven
small letters - numeric value
2.3.2 Control and Identification Cards
The EXEC, TITLE, and REMARK cards must precede all other input cards.Of these, the EXEC card is mandatory for all runs.
24
4?3
2.3.2.1 Execution Control Card (EXE) - This card controls the tasks to be
' ) performed and the type of data input. It must precede all ither input datacards e.tcapt the TITLE and REMkRK card. See Section 3.1.1 for guidance inspecifying this card. If the optional parameters are omitted, the aefaultcode is assumed. The card format is as follows:
EXEC = TASK, JOBSTATUS. 'CTASK, 1EPUR
TASK Analysis task (required):SP - Input and Spectrum Prccessing only. Input data is decoded
and checked for errors, and initial spectra are computed andprinted. No working files are wcitten.
SGR - Specification Generation Routin.! in TART to bc used.CEAR- Comparative EMI Analysis Routi'ie in TART to be used.
JOBSTATUS - Job status and input description. (Optional if CTASK isnot given. If omitted NEW is assumed.)NEW - new job. Data is from cards o'ily (default)OLD - old job. Data is from old ISF or PIF.MOD - modification job. I.ata fror, old ISF or PIF is to
be modified by card input.
CTASK - depends on TASK and JOBSTATUS- If TASK is ISP and JOBSTATrS is NEW, CTASK is not given.
- If TASK is ISP and JOBSTATUS is OLD or MOD, CTASK specifies thetype of input file:1SF - input file is an Intrasys'tem Signature FileSU - input is special user (from a Processed Input File).
- If TASK is SGR, CTASK is not given.
- If TASK is CEAR, CTASK specifies the subtask:TO - trade-off analysis
WAIVER - waiver anaiysisSURVEY - baseline system EMC survey
CEP.R - If given, cancel- the normal error hault after input decode eventhouen the data contains errors. IDIPR will continue intoinitial processing in spite of the errors. This is permittedonly if TASK is ISP.
CE - Cancel error hault.
2.3.2.2 Title and Remark Cards - These two optional cards supply identifica-tion aad additional information on the printed output and the permanent files.To give the user control over their printout, they are the only fixed field
cards in the IDIPR input. For both types, the keyword must start in coluni 1and the title or remark must start in column 8. Up to two TITLE and fiveREMARK cards are permitted.
25
COLUMN
1 _8
TITLE title data
REMARK remark
2.3.2.3 Comment Card -
COMMENT - comment
"The comment card is an optional card that allows the user to insert com-ments into the data. It will be printed in the list of input data only andwill not be saved for the report. Comments desired to appear on the reportand ISF file should be inserted through the REMARKS card. Any number of com-ment cards may be inserted anywhere in the data.
2.3.2.4 Output Control Cards - The following optional cards give output
options. If not given, the default code is assumed.
List CarJ -
LIST = NISF, OISF
NISF
NONEW - Do not print report of new ISF.
NEW - Print a report of the new ISF (default).
oISF
OLD - Print a report of the old ISF before modification.
The LIST card is optional. If no LIST card is present, the new ISFreport will be listed and the old ISF report will not be. The input data
cards are always listed.
Output Card -
OUTPUT = ISFILE, SPOUT, ISDBUG
ISFILE
NOISF - Do not create a new ISF (default)
1SF - Create a new ISF
26
- Fk i `_
• ' SPOUT
SP - Supplementcl printout from TART transfer models is desired.
NO - None desired.
NOTE: ThLs specification is overridden in TART. (See Section 2.4.9.)Use as placeholder when using the ISDBUG option.
ISDBUG
IS - IDIPIU special debug. This will cause flags, data and messagesto be printed. It.s purpcse is strictly debug; the data isunformatted ý_nd is generally meaningful only by followinga source listing of IDIPR.
OUTPUT is an opticnal card. Unless included, a new ISF will be treatedfor the run. For SGR and CEAR runs, a new ISF will be generated regardlessof the specification on the OUTPUT card as the ISF supplies the system datato TART.
2.3.3 System Data
This data defines the physical. system and specifies basic analysis param-eters applying to the entire system. For grotnd stations, a coordinate sys-
I tem is used with the origin at a specified reference point. All antennalocations, box locations, wire routing points, etc., are given in X, Y, Z co-
- ordinates relative to this point. AircraFt and spacecraft coordinates are i.nthe butt line (bl), water line (wl). and fusel-ge station (fs) system common-
Sly used for aerospace vehicles. As illustrated in Figure 3, butt line is thehorizontal distance to the right (positive) or left (negative) from thevehicle centerline, water line is the vertical distance from the vehiclebottom, and fuselage station is the lengthwise distance from the nose (posi-tive toward the tail). The origin of this coordinate system may vary fromvehicle to vehicle. In all cases, coordinates are given of the center of thebox, antenna, aperture, etc. being located.
2.3.3.1 System and Basic Analysis Parameter Card -
SYSTEM = TYPE, long., lat., alt., asm, empl
r 1. TYPE = AIR - Aircraft model (conical nosed cylinder with wings).
Ground, (sigma, epctr) - Ground station. Antennas are over afinitely conducting ground plane as defined by the subparam-eters:
sigma - conotictivity relative to copperepsr - permittivity relative to free space
SPACE - Spacecraft model (same as aircraft but without wings).
27
2. longitude Reference point coordinates degreesfor ground stations. All
3. latitude other systems must specify degreesC's as a placeholder.
4. altitude feet
5. asrf - adjustment safety margin for SGR. Spectra are dBadjusted so that EMI margins are less than orequal to asm.
6. empl - EMI margin print limit. Cases in vhich the dBmaximum EMI margin exceeds empl are printedin the TART output.
NOTE: asm and empl can be overridden in TART. See Section 2.3.9.
2.3.3.2 fuselage Model Parameter Card - This card is supplied only ifTYPE = AIR or SPACE on the SYSTEM card. It defines the fuselage parametersused for antenna propagation calculations for which a flat or round bottomedcylindrical model is used to approximate the vehicle shape. A visualizationof the flat bottomed model fitted to an F-4 aircraft is shown in Figure 3.The model is divided into fixed and variable radius regions with the dividingpoint at fSn, as shown. If one or both antennas are in the fixed cylinderregion, cylindrical spirals are used to compute antenna separation and fuse-lage shading. If both antennas are in the variable radius region, separationis calculated by a conical spiral fitted between the locations of the twoantennas. The cone will vary depending on the radii of the two antennas.The card format follows:
FUSLGE =fs n, f, P, wl W' MDLcc, -BOT,
1. fs - FS of variable radius region limit, as discussed inchesSn above.
2. 0f - Fuselage radius (radius of fixed cylinder). A inches10 percent variation from of is included in themathematical model to allow for contours in thevehicle shape. That is, if the radius from thecentroid to a given antenna is within 10 percentof of, it is considered on the fuselage. Foraircraft, the default value using the wing root iscomputed if this parameter specified as zero. Itmust not be zero for spacecraft.
3. Pc - Core Radius. To prevent inaccuracies resulting inchesfrom very small radii in computing fuselageshading, a cylindrical core is defined. Antennaswithin this core are assumed at the centroid with
Sno fuselage shading comp-,ted to them. If speci-fied as zero, a default value of 1/3 of the fuse-lage radius is used.
28
Fi\ed Radius CylinderZ••Y (wl -wc)
z(fs) pf
Centroid WL(bi)(wc
FIGURE 3BASIC FUSELAGE PARAMETERS(FLAT BOTTOMED CYLINDER) GP74o067 ,
I
wVbo
29
--W
,-So
4. wlc - Water line of the cylinder centroid. inches
5. w! - Water line of bottom when flat-bottomed cylinder inchesBT is used
6. ML - Cylindrical model
ROUND - round bottomed cylinderFLAT flat bottomed cylinder
2.3.3.3 Wingroot and Wingtip - Supplied only if TYPE = AIR. See Figure 4.
WNGRT bl, wl, fsf* fs• ' a
WGTIP = bl, wl, fsfil fsa
1 1. bl butt line of root/tip inches
2. wl water line of root/tip inches
3. fsf fuselage station of forward edge of root/tip inches
4. fs fuselage station of aft edge of root/tip iachesS~a
2.3.3.4 Environmental Electromagnetic Fields - These are optional inputsdefining levels of the ambient fields both outside and inside the system.Wire segments exposed by apertures in the system structure and antennas arepresumed exposed to the external fields. Equipment cases and wire segmentswhich do not run by apertures are exposed to the internal fields. The fieldsare specified by giving the levels at up to 90 sample frequencies. The pro-gram log-linearly interpolates between these levels. The EFQ statement estab-lishes the frequencies, while the OEFL amd IEFL give the levels at these fre-quencies. Either OEFL, IEFL, or both may be present; but if either is present,EFQ must be. The same number of levels must be :'pecified as frequencies inEFQ. If the external field only is specified, the internal field defaults to40 dB less than the external field. If the internal field only is specified,the external field defaults to 40 dB gceater than the internal field. Ifneither is 9pecified, external and internal fields are presumed zero.
EFQ = fl' f2' f3' ... fn
IERL = eill, e , ei3,e ... e.
OEFL = e 0 1 , e0 2 , e 0 3 , e on
EFQ - frequencieE HzIEFL - internal field levels dB V/.nOEFL - outside field levels dB V/mn -number of sample points
(1 < n < 90)
30
fs =0
>-- bi 0W ,S0
f_ fwdf+fs
WiWing Root biRoo
'.• L
aft fsWing Tip atfsbl
aft fs x axis 109966
.(Horizontal-Plaiie)
y ais
(z axis) Centroidwll =0
w1=0 17-~Wing WingVTp Rootwl wl fs 0
(Vertical Plane)FIGURE 4'
WING POINT LOCATION
31
2.3.4 Common Model Parameters
This data specifies parameters for apertures, antennas, filters, andwire characteristics used throughout the system. Basic parameters are givenfor each type of aperture, antenna, filter, and wire used in the system, aswell as a unique ID. These ID's are referenced in the subsystem and wirebundle data as many times as desired. These are multiple entry keywords asdiscussed in Section 2.3.1.
2.3.4.1 Apertures - These are dielectric apertures which expose wire bundlesegments to external electromagnetic energy from antennas and environmentalfields. For segments which are exposed over their entire length, the aper-ture length should be greater than or equal to the segment lengJh.. Field-to-wire coupling will be computed only for aperture-exposed wires.
APER = APID, wi, bl, fs, width, length, WGLOC
1. APID w aperture identification ALPHA iD
2. b] = butt line for aircraft or spaczccaft inches"x for ground inches
3. L - •wdter line for aircraft or spacecraft inchesy for ground inches
4. fs = fuselage station for aircraft or spacecraft inches= z for ground inches
5. width = width of aperture inches
6. length = length of aperture inches
7. WGLOC = wing location ALPHA code
NOW = not on wing or system is not aircraftBOT = on or suspended from wing bottomTOP = t~pof wingFWDEDG = forward edge of wing
AFTEDG = aft edge of wingTIP = tip of wing
2.3.4.2 Antenna Data - Main beam and side lobe limit angles are defined inthe spherical angles commonly used for antennas, as illustrated in Figure 5.Elevation angle e is the vertical depression down from the y-axis, and azimuthangle T is determined clockwise from the negative z-axis. The location andmain beam orientation is specified in the port data referencing AID. Thesubparameters required depend on the MODE)" code.
ANT = AID, MODEL. POLAR, (spl, sp 2 , .. )
32
4 Y
P(, Y, Z)
IiFIGURE 5
LOOK-ANGLE 0 AND (1) IN SPHERICAL COORDINArE SYSTEMFROM AN ANTENNA AT ORIGIN TO P (X, Y, Z)
33
1. AID identification ALPHA ID
2. YDZL code DESCRIPTION SUBPARAMETERS (spl, s ,...)
DIPOLE dipole
WHIP whip Z
SLOT slot 91
LOOP loop dPARDSH parabolic dish d, G , , B1 G G
dish~~ ., B B MsL' sl' Bl
LGPER log periodic d, c B' aB B' G 4)sl'
HORN horn d, GmB' 0B ýB GmsL sl' GB
PSDAR phasad v.ray d, GB, 0 B, 6 B, G ,sl' G.IB2 B9 msL' sl' Bl
SPIRAL spiral dB,G B' 0B5 CmsL' 0 ) GBl
Definition of subparameters
Z = antenna length inches
d = large-t antenna dimension inches
GmB = maxiwum gain dB
0 B = 3-dB vertical half-beamwidth degrees
i = 3-dB azimuthal half-beamwidth degrees
G = major side-lobe gain dB
ý sl* = side lobe angle from 4)B to180 degrees
G * = back lobe gain dB
*NOTE: Set equal to zero if not used.
3. POLAR = polarization ALPHA code
HZ - borizontalVE - verticalCI - circular
34: .
2.3.4.3 Filter Data - These are filters connected between a port and itssource or load. It is referenced in the port data.
FILTER = FID, TYPE, no. stages/ ' (sP1, sp 2 ... )order
1. FID - filter identification ALPHA ID
2. TYPE - type of filter
IYPE DESCRIPTION SUBPARAMETERS
SGTUN single tuned stage fo, B, y, isol
TRCOUP transformer coupled stage fo0 ' Y, isol, Q, m
: BUTTER Butterworth tuned fo, B, y, isol
LOWPAS low pass f , y, isol
HIPAS high pass fZ, y, isol
BPASS band pass f", fu Y, isol
BRJCT band reject ft , fu, Y, isol
3. No. Stages - number of stages if TYPE = SGTUN, TRCOUP, BUTTERor
Order - order if TYPE = LOWPAS, HIPAS, BPASS, BJL.T
4. Subparameters
f tuned frequency MHz0
B bandwidth MHz
y insertion loss dB
isol max isolation dB
Q circuit Q nondimension
m circuit coupling factor nondimension
f upper break point MHzu
ft lower break point MHz
35
2.3.4.4 Wire Characteristics Table - These cards define a table of generalwire characteristics which are referenced for specific wires in the wirebundle data. There are three input forms:
for unshielded wires -
WRTBL = WTDID, UN, nwt dc , c ,t. E
for single shielded wires -
VRTBL = WrDID, SH, n t, d C, a c' t1 ' dsl' t sl' tj, Ccs
for enuble shielded wires -
WRTBL = WTDID, DS, n wt, dc ac, tip , d t,
1. WTDID Wire Type Designation iD ALPHA ID
2. UN/SH/DS Shield Code ALPHA code
SH shieldedUN unshieldedDS double shield
3. nwt number of wire pairs twisted integer
4. d conductor diameter milsc
5. a conductor conductivity rel/copperc
6. t. insulation thickness mils1
7. c insulation dielectric constant rei/free space
8. dsl shield internal diameter mils(inner shield if DS)
9. ts shield thickness mils(inner shield if DS)
10. t. shield jacket thickness mils(inner shield if DS)
iL. C shield-to-conductorcapacitance (to inner shield if DS) pF/ft
12. d s2 outer shield internal diameter mils
13. ts 2 outer shield thickness
"36
2.3.5 Subsystem Data
This data gives specific parameters down to the port source andreceptor level, The cards must be given in order of the heirarchy: sub-system, equipment, port, source/receptor.
*" 2.3.5.1 Subsystem card -
SUBSYS = SSID
SSID Subsystem identification ALPHA ID
2.3.5.2 Equipment -
EQPT = EID, SPEC, FIXADJ, COMP, CLASS, bl, wl, fs
1. EID identification ALPHA ID
2. SPEC EMC spec to be used as base ALPHA codeM461A MIL-STD-461AM6181D MIL-I-6181D
3. FIXADJ fixed or adjustable EMC limit ALPHA codeFIX fixed EMC limitADJUST adjustable EMC limit
NOTE: If ADJUST is used, the nonrequired spectra areadjustable by SGR to the limit defined on thesource or RCPT card. If FIX is used, r- espectra are not to be adjusted. Such would bethe case for existing equipment for which theEMI specification limits are already defii•cd.
4. COMP compartment ID ALPHA ID
NOTE: This defines an RF tight comapdrtment in whichthe box is located. Case to case couplingwill be computed only for boxes with the samecompartment 1D.
5. CLASS security classification ALPHA code
NOTCLS not classified, unclassifiedCONF confidentialSECRET secretTOPSEC top secret
37
6. bl = butt line (aircraft, spacecraft) or inchesx coordinate (ground station) of center ofbox location
7. wl = water line (aircraft, spacecraft) or inchesy coordinate (ground sta'Aon) of center ofbox location
8. fs = fuselage station (aircraft, space- inchescraft orz coordinate (ground station) of center ofbox location
2.3.5.3 Spectrum Sample Frequency Table Data - These cards define the t-beof sample frequencies applicable for all port spectra x-i~ata z given .... "
ment. That is, the port spectra will be stored as maxiJmum emission ardminimum susceptibility levels occurring in the interval half way betweeneach sample frequency and its upper and lower neighboring frequencies. (SeeVolume I of this manual for a complete discussion cf this.) There are twocards used to define the frequency table. Either or both may be given.
The FREQ card gives basic parameters:
FREQ = f£, fh' nf , nfmax
f lowest frequency to be considered Hiz
(default = 30 Hz)
fh highest frequency to be considered Hz(default = 18 GHz)
"nf number of frequencies per octaveo (default = 3)
"nfmax maximum number of frequencies inspectra (up to 90 and greater than
number in FQTBL if given -default = 90)
Use of this card alone causes a table of up to nfmax geometrically spaced fre-
quencies to be generated from ft to fh with nf frequencies per octave. Anonfatal error will result if more than rfmax °frequencies are required tocover the specified frequency range, and the program will use the first nfmax
frequencies generated. If the FREQ card is omitted, the default values
are assumed.
Parameters ft and fh define the general frequency range. The specific
frequency range is defined by the program for each port depending on the SR
code on the SOURCE or RCEPT card.
38
The FQTBL card allows specific frequencies to be included in Lhe table:
FQTBL = fl f2 9 ... f
fl9 f2 "... user specified frequencies(1_< n < nfmax)
Use of this card causes a table of nfmx - n geometrically spaced frequenciesto be generated from fk to fh (nfo is ignored). The n user frequencies arethen inserted in the table at the appropriate places.
2.3.5.4 Port Data - These cards give the connection, filter, terminationimpedance, and initial nonrequired spectrum displacement data. The firstpert in each equipment must be the equipment case (i.e. leakage through thecase). The form for the case is:
PORT = CASE, sdfs, sdfr (a case mist be both a source and a receptor)
All other ports follow, and are analyzed in the order given. The format fortaese PORT cards is:
PORT = PID, CONN. CODE, (sPl, sp 2 , ... ), ry, cy, 2, Z, sdfs, sdfr, FID
1. PID port identification ALPHA ID
PID user supplied port ID
CASE the equipment case is specifiedas a port with CASE as the ID;user will supply spectrum
2. CONN. CODE connection code ALPHA code
ANT antennaWIRE wire
3. If CONN. CODE = WIRE, the subparameters are:
(BID, WID, PTID, RETURN, SH. TERM, APEXP)
B BID bundle ID (See 2.3.6.1) ALPHA IDSWID wire ID (See 2.3.6.4) ALPHA IDPTID point ID (See 2.3.6.2) ALPHA ID
NOTE: All ID's must match ID's in bundle data.
RETURN return path of signal ALPHA code
UNBAL unbalanced (wire return, unbalanced circuit)BAL balanced (wire return, balanced circuit)SHD own shieldGND ground
39
[ • • .•,•i44 •- •,- -, -. , . ,. . . .. . . . .•. . . .
~'kit
NOTE: No abbreviation of first two characters ispermitted on the REFWIRE alpha codes.
SH. TERM shield termination ALPHA code
NONE blankOPN open single shieldGND ground00 open openOG open ground double shieldGO ground open I (inner shield first)GG ground ground'
AFFXP aperture exposed wire ALPHA code
NOTEX not exposedEX exposed
If CONN. CODE = ANTENNA, the subparameters are"
(AID, o 0 c, C c W"LOC
AID antenna ID (Must match one table ID.See 2.3.4.2)
0 main beam peak coordinates, degrees0 vertical "look" angle
ýo main beam peak coordinates, degreesazimuthal "look" angle
cbutt line for aircraft or inchesspacecraft of antenna location
x -- coordinate for Ground
c2 water line for aircraft or inchesspacecraft of antenna location
y - coordinate for Grou.il
S:3 fuselage station for aircraft or inches__I spacecraft of antenna location
z - coordinate for Ground
WGLOC wing location ALPHA code
NOW not on wing (use also if system is
spacecraft or g-ound)
BOT on or suspenied from wing bottom
40
* -
TOP top of wing
) FWDEDG forward edge of wing
AFTEDG aft edge of wing
TIP tip of wing
4. rZ termination resistance* Ohms
5. c tc.omination capacitqncew Farads
6. Y, termination inductance* henries
*NOTE: See Figura f for impedance configuration. At least oneSparameter (ry, ck, or k£) must be nonzero.
7. -•dfs initial spectrum displacement dBfactor for source (0 if not source
-port). Added to spectrum level.
8. sdfr initial spectrum displacement dBfactor for receptor (0 if not recep-tor port). Subtracted from spectrumlevel.
9. FID filter identificazion (Must match ALPHA IDan ID of a filter given in thefilter table. See Section 2.3.4.3)
2.3.5.5 Source and Receptor Data - These cards, which follow the PORT card,dfine the type, adjustment limit, and spectrum parameters. A port isdesignated as a sourre, a receptor, or both depending whether the SOURCE,RCEPT, or both cards are present. (At 'east 'ne of them must be present.)If both are present, they can be in either order. The general format ofthese cards is
SOURCF = SR, p,, p,,"'
RCEPT = SR, pI P2'"
SR source/receptor type code ALPHA code
RF radio frequencyPOWER AC & DC power leadsSIGNAL signalCNTROL controlEED electro-explosive deviceCASE equipment case
Pip P2'''" parameters and subparameters on SRas described below
41
rQ
.1
FIGURE 6PORT TERMINATION IMPEDANCE CONFIGURATION
i4*1 42
S- • - A- .• • •• •
The SR codes must be the same on the SOURCE and RCEPT cards for the sameport.
The specific format for these cards varies with the SR code. Each ofthese formats is discussed below.
2.3.5.5.1 Radio Frequency -
SOURCE = RF, adjlim, f., f1, p, bwc, MODSIG, (spl, sp 2 , 2
(h 2 , h 3 , ... )RCEPT = RF, adjlim, f, f h' s, bwc, MODSIG, (sPl Sp2A ... ), fif
1. RF Radio frequency SR code ALPHA code
2. adjlim Adjustment limit displacement from dBthe initial spectrum level.(SGR can adjust the spectium this
num1 er of d3 from its initial ampli-tude. Must be positive.)
3.f 3. hlowest carrier frequency * HzS4. foh highest carrier frequency *Hz
5. p maximum output power (source) watts
6. s minimum sensitivity (receptor) dBm
7. bwc bandwidth of channel (6 dB width) Hz
8. MODSIG modulation/signa! code ALPHA code(see below)
9. (splSP2,...) subparameters depending on MODSIC(see below)
10. (h 2 , b3 , .b.) harmonic displacement level dB- relative to fundamental for the2nd, 3rd, ... up to 10th. Specifyas many as necessary up to highestsignificant.
• Note: f, fý if non-tunable.
43
77 7
11. fif intermediate 'requeucy; negative Hzif below tuned frequency, positiveif above tuned frequency
The required frequency range of an RF port is set from f to fh plus orminus half of bwc except where. the modulation spectrum is user-specified. Inthis case the required range includes the user frequencies.
If MODSIG is CW, there are no subparameters and the first parenthesisare omitted. For sources, follow CW by harmonics:
SOURCE = RF, adjlim, fy, fh' p, bwc, CW, (h 2 , h 3 , ... )
RCEPT = RF. adjlim, ft, fh) s, bwc, CW, fif
If the harmonics are not specified, a zero must signify the omission:
SOURCE = RF, adjlim, ft, fh' p, bwc, MODSIG, (spl, sp 2 ), (0)
The MODSIG codes and required subparameters for each are as follows:
MODSIG Description Subparameters
CW continuous wave none (see above)
PDM pulse duration modulation rb
NRZPCM NRZ pulse code modulation rb
BPPCM biphase pulse code rbs emmodulation
PPM pulse position modulation rb, t
TELEG conventional telegraph wpm, ftone
FSK frequency-shift keying rb, diff
PAMFM pulse amplitude modulation df
RADAR radar (pulsed RF) PTYPE, other subparametersas follows:
RECTPL, rbW tTPZD, rb, t, tr, tf
COSQD, rb, tGAUSS, rb, tCHIRP, rb, t, tr, tf, pcr
AM amplitude modulation SIG, b, em
44
DSBSC double side banQ sup-- SIG, bpressed carrier
LSSB single side band, lower SIC, b
USSB single side band, upper SIC, b
FM frequency modulation SIG. b, df
LOLKG local oscillator leakage lOnb, lObbfrom receivers
SPECT user supplied modulation f1 2 g91 f2, g2) "''' fns gnspectrum (2 < n < 10)
Where the subparameters are defined as follows:
Subparameter Description Units
rb bit rate or pulse repetition bits/sec
t pulse width sec
wpm words per minute
ftone tone frequency (zero if no tone) Hz
diff difference between upper and Hzlower oscillator frequencies
df maximum frequency deviation from Hzcarrier
PTYPE pulse type ALPHA CODE
RECTPL rectangular
TPZD trape-oid
COSQD cosine squared
GAUSS Gauss
CHIRP chirp
t pulse width sec
rrise time secr
tf fall time sac
45
Subparameter Description Units
pcr pulse compression ratio (neg. if nonefrequency deviation is negative)
SIG signal type code ALPHA code
VOICE voice
CVOICE clipped voice
NONVCE telegraphy digital
em modulation index if AM
b if non voice, bandwidth (6 dB) Hz
lob initial narrowband local dBm
oscillator leakage
lobb initial broadband local dBm/MHzoscillator leakage
flf 2...,fn User modulation frequencies (relative Hzto carrier freq)
g!,g 2 ,...n User modulation spectrum levels dBm/MHzwhere 2 < n < 10 (Receptor spectraare input in--dBm)
User-supplied modulation spectrum frequencies are relative to thecarrier. That is, negative frequencies are below the carrier, and positiveare above. The user spectrum is quantized to the equip ient frequency tableusing the maximum in the interval for emitters and minimum for receptors aswith any other spectrui. This allows changing the table without having tcchange the port data.
2.3.5.5.2 Power Lines -
SOURCE = POWER, adjlim, v, f, nh, nphase, RS, (spl, ... )
RCEPT = POWER, adjlim, v. f, nh, nphase, RS, (spl, ... )
1. POWER SR code for power line ALPHA code
2. adjlim adjustment limit displacement from dBthe initial spectrum level
3. v voltage (RMS) of line volts
4. f frequency (0 if DC) Hz
k 46
S 5. nh highest harmonic
6. nphase number of phases
7. RS code Ripple or noise spectrum code
(This overrides the SPEC parameteron the EQPT card.)
M461A MIL-STD-461A
M6181D MIL-I-6181D
M704A MIL-STD-704A
SPECT user supplied ripple spectrum
8. Param- Supply only if RS = SPECT, omiteters for all others.
(fl' gl' f 2 ' g2 9 -'.' f n gn) where
2< n <10
where
fil f 2 ' ... user-supplied spectrum frequencies Hz
g1 ' g 2 ' ... user-supplied spectrum amplitudes dBW/Hz
The required frequency range for power lines includes only the powerI frequency.
2.3.5.5.3 Signal and Control Lines -
SOURCE = SC, adjlim, .', fh' MODSIG, (spl, sp 2 , ... ), a, UNIT, bw
RCEPT = SC, adjlim, f., fh' MODSIG, (spl, sp 2 , ... ), a, UNIT, bw
IF MODSYG = VOICE or CVOICE, omit the subparameter group, for example:
SOURCE = SC, adjlim, f., fh' CV, a, UNIT, bw
1. SC code ALPHA code
SIGNAL signal lineCNTROL control line
2. ad lim spectrimn adjustment limini displace- dBmeat from initial spectrum level
3. J" lowest required frequency Hz
4, f h highest required frequency Hz
47
SI
5. MODSIG modulation/signal code ALPHA code
MODSIG Description Subparameters
PDM pulse duration rb
NRZPCM nonreturn to zero pulse rbcode modulation
BPPCM biphase pulse code rb, em
PPM pulse position rbs tmodulation
TELEG Morse telegrphy wpm, ftone
PAM pulse amplitude modulation rb, t
ESPIKE exponential decay spike rb, t
RECI?L rectangular rb, t
TPZD trapezoidal pulse t.ain rb. t' t
TRIANG triangular rb, t
SAWTH sawtooth rb, t
DMPSIN damped sinusoid r., f fbr
VOICE voice
CVOICE clipped voice
SPECT user supplied spectrum(2 < n < 10) flg "-- -- n' gn
where
t pulse duration (10-90' of secmax. amplitude for ESPIKE)
rb pulse repetition rate Hz
t rise time secr
wpm words per minute
ftone tone frequency (0 if no tone) Hz
em modulation index none
48
f oscillatory frequency' of HzS•r damped sinusoid
Ifl det-ay frequency of damped Hz
si~nusoid
fi aser supplied spectrum frequencies Hz
gi user supplied spectrum levels(see UNIT)
6. a amplitude in units given voltsby UNIT (0 if MODSIG = SPECT) or amps
7. UNIT unit code foi a and gi ALPHA code
VLTS Volts (dPuV/MHz if MODSIG = SPECT)AMPS Amps (dBljA/MHz if MIODSIG = SPECT)
8. bw bandwidth of infoimnation Hz
2.3.5.5.4 Electr)-explosive device -
RCE ';,T =EED, adjlim, P nf' i nf' (f ,r i , '
1. EED Electro-explosive device ALPHA code
S[2. adj lim adjustment limit
S3. Pn maximum power for no fire watts
sI4. i nf maximum current for no fire amps
5. uncionfi frequency (maximum of 10 frequencies)
r. = ral part of complex impedance at f ixi= imaginary part of complex impedance at fi
Thez•e is no required fr-equency range for EED's. The entire spectrum
IV is adjustable by SGR. Also, a SOURCE card cannot be specified for an EED.
•: 2.3.5.5.5 Equipment Case Leakage
SSOURCE = CASE, adJlim, NBSPEC., BBSPEC
RCEPT = CASE, adjlim, NBSPEC, BBSPEC
1. CASE code word deaoting equipment case ALPHA code
49
2. adjlim spectrum adjustment limit displace- dB-F, ment from initial spectrum level
3. NBSPEC narrowband specification ALPTIA codespectrum
MILSPEC SPEC given in EQPT card
SPECT, (fl' g91 f 2 ' g2 ) ... fn' 8n)
user supplied spectra
fi - frequency Hz
gi - level dBPV/meterat 1 meter
2 < n < 10 trom box
4. BBSPEC broadband specification spectrum ALPHA code
MILSPEC same as above
SPECT, (flp g1) f 2' 92' "'" f n' gn)
same as above
fi - frequency Hz
gi - level dBPV/meter/MHzat 1 meter
2 < n < 10 from box
There is no required frequency range for equipment cases. That is,the entire spectrum is adjustable by SGR.
2.3.6 Wire Bundle Data
These cards follow the subsystem data. Like the subsystem data, thecards must be in order of the bundle, point, segment, and wire hierarchy.
2.3.6.1 Bundle Card -
BUNDLE = ID
ID - bundle ID ALPHA ID
2.3.6.2 Bundle Poinl:s and Coordinates -
BPTS PTI' X1 9 Y1, z1l PT2, x2, Y2, z2 , ... PT, X y z
50
PT. - ID of Point i
x x- x coordinate of point in ground, inches:| butt line in aircraft or snacecraft
Yi - y coordinate of point in ground, incheswaterline in aircraft or spacecraft
o i - z coordinate of point in ground, inchesfuselage station in aircraft or
spacecraft
n < 11
Only one card with BPTS on it is permitted per bundle. Continuationcards (terminate continued card with comma) must be used if data will notfit on one card.
2.3.6.3 Bundle Segment -
BS2G = PTID1 PTID.19 hi comgt.l, APID,
,PTID1 - point ID ALPHA ID
PTID2 - point ID ALPHA ID
kI - length of segment inches
h1 - average height above ground irches
compt. 1 - compartment ID through which segment /ALPHA IDruns (see EQPT card) 7
APID - aperture ID if aperture exposed. • ALPHA IDIf not exposed, 0. Must match IDon one APER card (Section 2.3.4.1)
Only one card with BESEG on it is permitted per bundle. Use continua-tion cards, as with the BPTS card, if data for all segments will not fit onone card. Only one compartment may be specified per segment. If a segmentruns through more than one compartment, break into smaller segments.
2.3.6.4 Wire -
WIRE = WID, WTDID, PTIDI, PTID2 , PTID3 , ...
WID wite ID (Referencec on P)RT card) ALPHA ID
WTDID type ID in Wire CharacterisLics table. ALPHA IDMust match an ID given on one WRTBLcard at system level (Section 2.3.4.4)
PTIDi Point ID ALPHA ID
51
2.3.7 Waiver Analysis Spectrum Shift Data
These are specified if, on the EXEC card, TASK = CEAR and CTASK =
WAIVER. These cards specify portions of the emission, susceptibiliy, orboth spectra which are to be shifted by the amount specified. The resultinginterference is compared to that on the baseline run. The shifts aretemporary and do not affect the permanent file data.
Any number of cards are allowed referencing the same port. Thisallows multiple shifts of a given spectrum. Overlapping ranges ard allowedand are cumulative. (See Section 3.1.5)
If either the source or receptor spectrum displacement is not given,the omission must be shown by zero placeholders. The cards may bc placedin any order, and up to 50 cards may be used in one run.
The format is:
WA = SID, EID, PID, fsl, fs25 ds, frl, fr2, dr
where
SID = subsystem IDEID = equipmep- IDPID = port IDfs1 = low frequency of source shift range Hz
fs2 = high frequency of source shift range Hzds = dispiacement for source spectra dBfrl = low frequency of receptor shift range Hzfr2 = high frequency of receptor shift range tizdr - displacement for receptor spectra dB
2.3.8 End of Data
EODATA
This card irnjicates the end of all IDIPR input data.
2.3.9 TART Input Cards
As previously discussed, the input data for TART consists primarilyof the worK files generated by IDIPR. In addition to these work files, TARTrequires the user input card described below.
2.3.9.1 TART Control Card - Only TASK is required. The rest is optional
TART = TASK, AI, SP
52
1. TASK Task code (required) must agree with
TASK and CTASK on IDIPR EXEC card as follows:
IDIPR TASK IDIPR CTASK
SGR SGRTO CEAR TOWAIVER CEAR WAJVERSURVEY CEAR SURVEY
2. AT Code for additional input card (optional)
AI Additional input card follows TART cardNOAi No additional input (default)
3. SP Code for supplemental printout from transfer models
SP Supplemental printout desiredNOSP No supplemental printou. des:ired (default)DB Debug output. Gives additional outputs for
debuggi:rg.
2.3.9.2 Additional Input Card - This card is supplied if AI code = AI onTART card. If used, it overrides the asm and empl parameters on the SYSTEMcard. It is a fixed field card, and both parameters must be right-justifiedin their fields.
Columns Parameter Description
1-10 ewpl EMI margin printout limit11-20 asm SGR adjustment safety margin
53
2.4 INPUT DATA RULES
The following rules apply to the IDIPR input data.
2.4.1 General Rules
1. All cards (except EODATA) must have a keywora, an optional ISFmodify code, and an equals sign, followed by the parametersassociated with the keyword. There are no column specifications.Palameters can be continued onto following cards by specifyingthe last non-blank character as a comma. Blanks are ignored andmay be inserted between parameters for clarity, if desired.Parameters cannot have imbedded blanks.
2. Only those keywords specified in 2.3 are valid.
3. All parameters denoted as ALPHA CODES have a list of valid optionsto be selected by the user. Only these options will be recognized.
4. dll keywords and alpha code words may be abbreviated by the firsttwo letters or given in full (except for the REFWIRE codes on thePORT card).
5. Parameters and subparameter groups must be separated by commas.
6. The exact number of parameters associated with a keyword must begiven except for control cards (EXEC, LIST, OUTPUT) and in choseinstances where alternate ways are giveL. If a parameter is notused or is inapplicable, a placeholder, such as 0, must be given toshow the omission. This holds even when the parameter is the lastone. The number of parameters given on each card is checked, andif the correct number is not given for the keyword, it is flaggedas an errr. On control cards, the position of a parameter must bepreserved with placeholders; but if defotult options for parametersat the end are to be used, they may be omitted. For example, on anEXEC card, EXEC = ISP, NEW is sufficient. (The third parameterdefaults to ISF.) If, however, CE (cancel error stop) is desired,the third parameter must be explicitly given to keep the positionof CE; i.e., EXEC = ISP, NEW, ISF, CE.
7. Subparamerers i:t enclosed in parentheses. There is either avariable oc fixed number of these qepending upon the particularS, i.t the number is fixed, the cxact number must be given.For example, on the SOURCE = C".TRL card, MODSIG determines thesubparametar specifications. If MODSIG is PDM, there is one andonly one subparameter, rb. If MODSIG iq equal to SPECT, a variable-iuaiber of ot'pararmcters ia given (up to 10 frequencies and 10
tm~r,'/
2.4.2 Alphanumeric ID's
All parameters denoted as ALP1iA ID are user supplied alphanumericidentificacions (ID). The following conventions apply to ID's:
1. An ID is ccmposed of 1 to 5 alphabetic letters and digits.(More than 5 results in a syntax error.)
3. No special characters may be used in an ID.
4. In general, the ID should be unique for that keyword type. Someexceptions to this are permitted. For example, only pert iD'swithin an equipment need to be unique, and each new equipmentmust have the first port ID specified as CASE.
2.4.3 Nameric Parameter Fcrmats
All oarazeters not specified as ALPHA ID or ALPHA CODE are suppliedas numertc ,alues. The following conventions are used for numeric values:
1. NuTbars with no fractional parts may be given with or without thei'mal point. If omitted, the decimal is assumed to the right
•n the digits. For example, 243 is read as 243.0.
2. Floating point numbers may be expressed in exponential form, suchas .nE+s, n.nE+s where n is the base and s is the exponent to thebase 10. The plus sign may be omitted if s is positive (3.El, 3E12,31.4E-01, '314E+l are all valid). If the decimal is omitted itis assumed to be just before the "E". Thus, 3E12 is 3.x 1011.
3. Double precisica values are not allowed.
4. There is nc complex value input except where specifically expressed.In such cases, the real and imaginary values are given as twoparameters; for example, for a RCEPT = EED (electro-explosivedevice), the function is given as a complex number specified as2 parameters; e.g., RC = EED, 30, 1, 1, (30, 1, 0, I.E10, 1, 0).
2.4.4 Order of !DIPR Input Cards
The order of the innut data is shown in Figure 7. The following rulesapply:
1. ThI EXEC cara can be preceded only by the TITLE and REMARKcards,
55
___________RREPEAT
UP TO10UBNDL.E : "UP TO/ 1
I DATA WIRE- 0/BNDLE TIMESS~~BSEG =
BPTS =--- BUNDLE =_j
•j •'/ REPEAT
... /• UP TOT RCEPT= REPEAT TIMESSOBS•STEMSOURCE-=_/ UPTO
DATA PORT= D51EQPTI FREQ'" EQPT =
SUBSYS= •
: •1 OEFL=
EFO= /WRTBL=
FILER OF IDYPRDAT6ANT =SYSTEMAPER -
DATA WGTIP -CARDS WNGRT =
FUSLGE=S~~~SYSTEM= .. /
I ~REMARKS '•
I CONTROLý OUTPUT= ANY ORDER
SIDENTIFICATIO, AD LIST = -. ,
EXEC =
FIGURr_- 7
ORDER OF IDIPR DATA
56
,g
2. The execute and identification cards should be followed by the
input/output control cards (LIST and OUTPUT). There is nospecified order to these cards.
3. The data is divided into three groups, and these groups must begiven in the following order:
A. System dataB. Subsystem data
C. Bimdle data
4. The data cards belonging to group (A), system data (SYSTEM,ANTENNA, FILTER, etc.), can be in any order.
5. In group (B), the data must be given in hierarchical order asfollows:
a. Subsystemb. Equipmentn. Frequencyd. Porte.,f. Source and/or receptor (either order)
d-f cards repeat for a maximum of 15 ports; b-f repea for amaximum of 40 equipments; a is inserted where applicable.
6. For new jobs (no old ISF), the first port of an equipment mustbe the equipmcnt case. Its source or receptor cards must begiven also.
7. At least one subsystem card must be given prior to the equipmentdata.
8. Port ID's must be unique within an equipment.
9. A subsystem must have at least one equipment.
10. In new jobs, an equipment must have at least one port other thanthe case. A port must have a SOURCE card or RCEPT card or both.It may not have multiple SOURCE or RCEPT cards.
11. In group (C), bundle data, the BUNDLE card containing the bundleidentification must be the first card, followed by other bundlecards in any order.
57
12. Each bundle must have one and only one BSEG keyword card and oneand only one BPTS keyword card. Continuation cards as neededshould be used. A bundle must have at least one and up to 50wire cards.
13. For multiple entry keywords, the maximum system specificationsas given in Section 2.2 must not be exceeded.
14. rhe last card must be an EODATA card.
A• 2.4.5 Modifying the ISF
Any ISF from a previous run can be used as input, and data cards can beused to modify any of the data on it, This ISF may have been created byan IDIPR run, an SGR run, or by the MERGE utility program (Appendix B).
To use an ISF with input modifications, JOBSTATUS on the EXEC cardmust be MOD. Three types of modifications can be made to the existing dataon the ISF as indicated by the MODISF code. These are add (A), delete (D),and modify (M). These are specified by A, D, or M in parentheses followingthe keyword and before the equal sign on a data card. The rules governingthe modify process are given below:
1. All data from the old ISF will be included unless overridden ordeleted by an input card.
2. All rules given above for input data apply except where notedin this section.
3. All added subsystems must follow those to be modified or deleted.
4. Within a subsystem, all new equipments to be added must followthose equipments modified or deleted.
5. The data to modify subsystems and equipments must be given inthe same order as they are on the ISF which is being modified.Hence, in setting up a modify run, the user must have a listingof the equipments on the ISF as this gives the order ofequipments on the file.
6. Within an equipment, new ports and modifications to existing portsmay be in any order.
7. A system data entry, such as an ANTENNA or FILTER, is deleted bygiving the keyword, modify code, equals sign and identification.For example, ANT(D) = ABX2.
8. There is no order to the system data entries, incluiding thosewhich modify the ISF data.
58
9. Wire bundles to be modified must be in the same order as they[) appear on the ISF.
10. All bundles to be added must follow those which modify existingISF bundles.
11. Since subsystem data and bundle data belong to the hierarchicalsystem, modifications to an upper level also apply to theassociated lower components. These are the components that havethe upper level component ID as an implicit ID. Also, to modifya lower level, it is necessary to specify all upper level ID'sthat define it; that is, all its implicit ID's. For example, todelete port, XY2 of equipment TACAN of subsystem AC01, thefollowing would be specified:
SU(M) = AC0ItQ(M) = TACAN
PO(D) = XY2
12. If a higher level keyword card has only a modification code, anequals sign, and an ID on it; the parameters of the keyworditself will not be modified. Instead, the ID will be used togive an implicit ID to a lower level keyword. If, however,parameters follow the ID, they will override those parametersof the keyword. If any parameters are specified on a modifycard, all parameters must be re-specified.
13. Any higher level keyword, such as SUBSYSTEM, can be used todenote all equipments associated with it. For example, a sub-system with a DELETE (D) modification code and an ID woulddelete all equipments associated with it. If one equipment ofa subsystem is to be deleted, the subsystem must have MODIFY (M)specified so as not to delete the other equipments. For example,to delete only TACAN, specify:
SU(M) = ACOlEQ(D) = TACAN
14. If not specified, the default modification status, is ADD.
2.4.6 Additional Rules for Trade-off Runs
The following rules apply to CEAR trade-off runs, in addition to theabove rules for any modification to an ISF.
1. No ports may be deleted; hence, no equipments or subsystems maybe deleted.
2. The frequencies at which the baseline spectra were generated maynot be changed.
59
3. If changes are made to the common model parameter tables(antennas, filters, apertures, and wire characteristics), allports that reference these tables must be "dummy" modified inorder to be analyzed. Also, if bundle da. is changed, portsreferencing that bundle must be "duumy" mod~fied. A dummy portmodification is done by specifying a modify port card foridentification but with the parameters unchanged from the base-line:
SU(M) = IDEQ(M) = IDPORT(M) = ID, p1 ' p2 '
where p', ' " " are same parameters used in the baseline.
The source and receptor cards need not be given.
4. Any system data, other than the tables discussed in 3 above, can-
not be changed.
2.4.7 CEAR Waiver Analysis Run
Up to a maximum of 50 waiver analysis cards may be given in any onerun. Any number of spectrum shift cards referencing the same port arepermitted. This allows multiple shifts on the sane spectrum. ShLfts arecumulative if the frequency ranges overlap. For example, two 10 dB shiftswould result in a 20 dB shift whe.re the ranges overlap.
60
Section 3
RUNNING IFMCAP
3.1 IEMCAP RUN OPTIONS AND CONTROL PARAMETERS
This section discusses the use of the data cards described in theprevious section to run the program. Since IEMCAP is a diverse programwith many task, subtask, and data options this section provides guidancein selecting the appropriate options for a given run.
3.1.1 Options on EXEC Card
The EXEC card controls the basic task and data inp'it options to IDIPR.As discussed in Section 2.3.2.1, this card contains four parameters. Thefirst, TASK, specifies the basic task or task routine. The options forthis are ISP, SGR, and CEAR. ISP directs that input decode and initialprocessing are to be performed, but no working files are to be created.The other two options direct IDIPR to process the data and create workingfiles for the designated TART analysis routine. SOR is used forspecification generation, and CEAR for the other three analysis tasks.
The second parameter, JOBSTATUS, gives the job input status and hasthree options: NEW, OLD, and MOD. NEW indicates that input data is fromcards only. That is, no ISF is used for input. This is used for aninitial run. The OLD option indicates that input data is from an ISFcreated during a previous IDIPR or TART SGR run. The data on this file isto ba used as is; that is, not modified by card input. If the data is to bemodified, the MOD option is used.
The third parameter, CTASK, has a dual role. If TASK = G•AR, itspecifies the subtask to be performed. These are TO for trade-off, WAIVERfor specification waiver, and SURVEY for baseline EMC survey, If TASKISP and JOBSTATUS = OLD or MOD, CTASK iudicates whether the input i:an ISF or special user (SU) meaning a PIF. The PIF is identical to an ISFexcept it has no spectrum data. The SU option, therefore, indicates ttiatthe input file nas no spectrum data. CTASK is normally not given ifTASK = ISP and JOBSTATUS = NEW since this implies that no existing ISFexists. However, if the CERR option is used, CTASK must be specified asISF as a placeholder. If TASK = SGR. CTASK is not given.
CERR, the fourth parameter, is optional and can only be used ifTASK = ISP. If given, CERR can only be CE. Normally, IDIPR haults afterreading and decoding the input cards if they contain errors. However, aseach input card is read and decoded, the data is written on the PIF. But,if a card contains an error, for example the wrong number of parameters,the card is "deleted." That is, its data is not written on the PIF.Consequently, the PIF zontains only "good" data. In some cases, it may bedesirable to proceed into the initial processing section uf IDTPR in spiteof input errors so that further error analysis can be performed on the PIFdata and to obtain a report. But, because some input data wilL have been
61
dro;pped due to the errors, erroneous error messages and possibly unpredict-able results may occur from using this option.
It is suggested that the CERR option not be used by one unfamiliar'ith, IEMCAP especially during initial stages with new data which may contain
numerous errors causing unpredictable results during initial processing.
If "ERR is used, the three other parameters on the card must be speci-fied as placeholders even though they could have been omitted and thedefault options used. For example,
EXEC = ISP, NEW, ISF, CE.
If the CE option had not been specified, the card would have been
EXEC = ISP, NEW
3.1.2 Input and Spectrum Processing (ISP) Runs
If the system to be analyzed is new and large, it may be desirable torun the data through IDiPR for error analysis and to obtain the initialspectra before beginning the time-consuming analysis task. The errorscan be corrected, and the data re-run through IDIPR until all errors have beeneliminated and the initial spectra are as desired. The number of runs ofthis type depends on the size and complexity of the data as well as thefamiliarity of the user with the IEMCAP input format. For this type ofrun, use of the ISP execution option causes all input decode, initialprocessing, and error analysis to be performed, but the eight workingfiles are not created. This reduces the run and input/output time ofIDIPR. Once the input is error free, or should be on the next run, TASK mustbe changed to the analysis task desired and CTASK supplied if neededbefore TART can be run.
There are two ways to handle the re-submission of the data if thereare errors. The first and simplest is to fix the cards and re-run the job.However, for large systems with several boxes of data cards, it might beadvantageous to use the PIF from the previous run as input to a modify runand correct the errors as updates to the PIF. The EXEC card for such a
run would be
EXEC = ISP, MOD, SU
See Section 2.4.5, Modifying the ISF, for rules in updating the file. Notethat SU is used te' indicate that the input file is a PIF.
As an alternative to using the CERR option, if a run had been madewith a few or insignificant errors and the PIF was saved, it can later beused as input to initial processing for additional error analysis, for initialspectrum generation, and to obtain a report. The EXEC card for this Is
EXEC - ISP, OLD, SU
62
77M IMMINP M
The advantage of this over using the CER option is that the user canexamine the errors and determine their ieverity before proceeding intoinitial processing. Note that
EXEC = ISP, NEW, SU
is not valid since there is no input fi]e for NEW runs. If used this willgive an error.
3.1.3 Specification Generation Runs
The user has several parameters at various levels in the data whichprovide control over the specifications generated by SGR. The two maincontrol parameters are the adjustment sa-ety margin (asm) and EMI marginprintout limit (empl) located on the SYS"°EM card (Section 2.3.3.1).(These can be overridden by use of the additional input card in TART.) Ifinterference is found in a non-required portion of an emitter or receptorspectrum (i.e., the EMI margin is greater than asm), the emission orsusceptibility level is adjusted so that the received signal is below thesusceptibility by an amount equal to -asr. For example, if, at a givenfrequency, the EMI margin is 10 dB and asm is -6, the emission spectrum isreduced or the susceptibility is raised, depending on which was beingadjusted, by 16 dB.
After emitter and receptor spectra have been adjusted, SGR determinesany unresolved interference cases and prints a snmary of each. It doesthis by computing the EMI margins for each coupled port pair using theaajusted spectra. If the maximum margin exceeds empl for a given portpair, the case is considered unresolved EMI and the summary is printed.
At the equipment level, the FIXADJ parameter on the EQPT card(Section 2.3.5.2) specifies whether or not its port spectra are
adjustable. If an equipment exists and EMI specifications for it havebeen determined, FIXADJ is FIX meaning that all port spectra are notadjustable. For new equipments, this parameter should be ADJ so thatSGR will adjust them.
At the port level, three parameters exist for use in controllingspecification generation. On the PORT card (Section 2.3.5.4), sdfs andsdfr specify the displacement of the initial non-required spectra from the
• MIL-STD-461A or MIL-1-6181D levels. The first, sdfs, applies to source
spectra; and sdfr, to receptor spectra. For example, if sdfs = 20 foran RF port, the non-required broadband and narrowband spectra will initially
be set 20 dB higher than the MIL-STD-461A CE06 level. Parameter sdfs isalgebraically added to the emitter spectrum, and sdfr is subtracted fromthe receptor spectrum.
On the SOURCE and RCEPT cards, adjlim sets the amount by which theinitial spectra can be adjusted. This prevents extremely stringentspecifications from being generated. For example, if adjlim is 30, thenon-required portion of the spectrum can be adjusted 30 dB from the initialvalue. It must be a positive number.
63
The EXEC card for running SGR is
EXEC = SGR, NEW
or
EXEC = SGR, OLD
depending on whether or not an old ISF exists.
3.1.4 Baseline EMC Survey Runs
This analysis surveys the baseline system for interference. Thecontrol parameter is empl on the SYSTEM card. Emitter-receptor port pairswith maximum EMI margin exceeding empl are printed in the output asinterference cases. The EXEC card for this analysis is
EXEC = CEAR, NEW, SURVEY
The OLD option is valid if it is desired to survey an old system.
3.1.5 Waiver Analysis Runs
A waiver analysis must be an OLD run with an ISF used as baseline inputto IDIPR and a Baseline Transfer File (BTF) as baseline input to TART. The1SF and BTF can be from either a previous SGR or SURVEY run. The requestsfor waiver are specified as spectrum shift data on the WA card(Section 2.3.7). This causes a temporary shift of the port spectrum bythe amount and in the frequency range specified. For example,
WA = CNI, TACAN, POWER, 100, 500, 30, 150, 800, -20
causes the source broadband and narrowband emission from 100 to 500 Hz tobe increased 30 dB and the receptor susceptibility from 150 to 800 Hz tobe reduced by 20 dB. More than one shift per spectrum can be specifiedby additional cards. The interference resulting from the shifted spectrais compared to that in the baseline, and a summary is printed if themaximum margin exceeds empl. The spectrum shifts are temporary and donot affect the pe:manent files.
The EXEC card for a waiver analysis must be
EXEC = CEAR, OLD, WAIVER.
3.1.6 Trade-off Analysis Runs
In a trade-off analysis, the interference in a system with modificationsis compared to the baseline system. The baseline system is defined by anISF input to IDIPR and a BTF input to TART. The modified system is definedby modification card input to IDIPR as discussed in Section 2.4.5 onmodifying the ISF. Also, the rules for trade-off discussed in Section 2.4.6
64
must be observed. In particular, no ports may be deleted as this willS) cause alignment errors in TART between the working files and the BTF. New
ports may be added, however. Also, an equipment frequency table cannotbe changed since the analysis results stored on the BTF are at the baselinefrequencies.
A trade-off ruLL nust always he a MOD run so that the EXEC card must be
EXEC = CEAR, MOD, TO.
3.1.7 Adaitional IDIPR Options
The LIST and OUTPUT cards provide optional control over the IDIPRoutput. The LIST card alluws the user to override the program defaultsfor listing reports of the old and new ISF's. A report gives a completesummary of all data on the ISF. Normally, IDIPR prints a report of thenew ISF, containing the modifications if any. Tlhe old ISF report isnormally not listed. If the user wishes a report of both old and new ISF'sthe following card is included:
LIST = NEW, OLD
The primary purpose of the OUTPUT card is to suppress the creation ofthe new ISF. If this card is cmitted, IDIPR generates an ISF with theupdated data. However, for some ISP runs it might be desirable to notgenerate the new ISF. For example, this might be used for a new set ofdata in the error analysis stage where it is likely that initial processingwill not be reached due to errors. This would particularly apply to small
data sets for which correcting and re-submitting the cards is moreexpeditious than switching to a modify run. Another example is an ISP runmade to obtain a report of an ISF oniy. To suppress creation of the newISF, the card is
OUTPUT = NOISF
The second and third parameters on the OUTPUT card are normally notused. The second parameter is for supplemental TART outputs. But, sincethis is overridden on the TART card, this parameter is used only as aplaceholder when the third parameter is specified. The third parameter isused to obtain debug outputs from IDIPR. It causes control flags, dataarrays, and program flow trace information to be printed. A program listingis necessary to identify these outputs. See the Computer ?rogramDocumentation for definitions of the flags and control variables.
3.1.8 Additional TART Options
TART has a basic input card, discussed in Section 2.3.9, which controlsthe task and run options. Generally, the task specified on this card mustagree with the IDIPR execute card. The only exception involves the SGRand SURVEY tasks. Work files created by IDIPR under either option areidentical and can be used interchangeably with TART for either task. TARTwill not execute if its task and the IDTPR task are incompatible.
65
The second input card, which is optional, allows the printout limitand SGR safety margin specified in the IDIPR input to be overridden. Thisfeature allows TART to be rerun without having to rerun IDIPF. For example,assume SGR is run with a -12 dB adjustment safety margin iud a large amountof unresolved interference results. A second SGR run mry h:: made with aless stringent safety margin using the same working files without having togo through IDIPR. The supplemental printout is also specified
Examples of these cards are as follows. To run specificationgeneratior with a 10 dB printout limit, a -20 dB safe cy margin, andsupplemental printouts, the two input cards to TART are
TART SGR, AI, SP
and
10. -20.
To run a trade-off analysis with no additional input card and no supplementalprintout requires only one card:
TART = TO
To run a baseline survey with no additional input but with supplementalprintout, the card is
TART = SURVEY, NOAI, SP
3.2 JOB SETUP
The previous sections described the input data, format, organization,and options for the various tasks performed by IEMCAP. This section discussesthe setup of the cards and files running the program.
As previousl3, discussed, the IDIPR and TART sections of IEMCAP are runas two separate executions. IDIPR generates a number of working filescontaining the processed data which are read by TART in performing theanalysis task. IDIPR can be run alone, the working files saved, and TARTrun at a later time. This might be advantageous for large, new data setsin detecting and corcecting data errors. It also allows the user to look atthe data and initial spectra before running TART. Alternatively, IDIPR andTART can be run consecutively as one job. This might be used for smalldata sets or a small number of modifications to an existing ISF.
Control cards for the particular computer must be supplied to executethe two program sections, provide and save the appropriate files, and definethe input, output, and file logical units. In general, these will consistof the following types of cards:
o Identification and accounting cards
66
7M n-1
o Select card to fetch program from library
o Data definition cards
o Initiate execution card
o Error condition directives
o Core request card
o Delimiters
Check the computer system manuals for the specific cards.
The input card deck will consist of
o Computer control cards, as discussed above
o IEMCAP prograr deck if not stored on permanent library file inthe computer
o IEMCAP input arranged as discussed in Section 2.4.4.
Basic setups for the five tasks are illustrated graphically inFigures 8 through 12. The first of these (Figure 8) is an ISP rur. Thetemporary PIF (CARDIN) Rnd, optionally, the new ISF are created, and areport of the data is printed. Figures 9 through 12 show specificationgeneration, waiver analysis, Lrade-off, and survey runs. The figurer showthe two steps as separate jobs, but as discussed above, they may be runseparately or together. (In Figure 12, the IDIPR step is assumed.) Duringthe Step 1 (IDIPR) the seven work files and the new ISF are generated andthe report of the data is printed. In Step 2 (TART) reads these files. TheBaseline Transfer File (BTF) is generated for specification generation andsurvey runs and read as input for waiver and trade-off runs. Duringspecification generation an updated !SF is also generated containing theadjusted port spectra, and four scratch files are used which are releasedafter the run. In all cases, printed reports are generated from both ID!PRand TART of the data parameters and the analysis results.
3.3 PLSTART CAPABILITY
E1EMCAP saves analysis rezults at several stages of execution andprovides file updating capabilýýv to use these on subsequent runs to avoidreprocessing data. During Input Decode, error-free data is written to theProcessed Input File. If errors occur during decoding, IDIPR halts afterprinting all errors and offending cards. The user can use the PIF as hedoes an old ISF file and update it with corrected data on the following run.An option also allows the user to proceed into Initial Processing eventhough errors occurred. Spectra will be generated for those ports for whichthe data was found error-free. The results of Initial Processing, whichperforms file updates and generates initial spectra for new and modified
67
EODATA
BUNDLE DATA JSUBSYSTEM DATA INIPR
INPUT
DATA
SYSTEM DATA/
EXEC - ISP, NEW
COMPUTERERCONTROL CARDSTO EXECUTE
SC O M P U T E R
NEW15F*
(I DIPR)
COMPUTER
R R Optional
FIGURE 8INPUT AND SPECTRUM PROCESSING
(ISP) RUN
6
68
•II
I ~EODATAI'11
Ste 1. IDIPR ~
BUNDLEf - ----------------------------
•~DT r OAr
DATA) - Step 2. TART
I • SUBSYSTEM -
I DATA jARRAYI
SYSTEM WBF IDATA -M
DATA _ _ _ _ _ IREDFII" I- -- -EEDF ] I
EXEC - ;GR, NEW URSF TART - SGR
I -COMPUTER= ICOMPUTER-CONTRCL CARDS UCOGNTROL CARDS
0 _TEXECUTE 0 SEXECUTE
I NEW
I . . . ,.IDIPR,°) I-...4 S III I,
) ) I
-I IR_( I
FIGURE
V SPECIFICATION GENERATION RUN (NEW SYSTEM)
- -69
TAR SG
Step 1. IDIPR
IEGOAATA
WAIVER Step 2. TARTANALYSIS - INPUT ARRAY
DATA DATA -W WMFI
I - - ____ EDFB
EXEC - CEAR, EA
OLD, WA URSF
ONTROL CAR - ONTROL CARDTO EXECUTE -.1F TO EXECUTE
I (GENERATEDRATD O
I TARTTRRN
IPREVIOUS TART
IPR I I RUNOSG OR
i I I iSURVEY RUN)
I I TATWIISF
TART--R-
- - - - - - - - - -- - - - - - -
LC
FIGURE 10WAIVER ANALYSIS RUN
(7A
FIE
Step 1. IDIPR1
EODATI
BUNDLE f DDATA) Z DIINPUT Step 2. TART
- DATASUBSYSTEM - TO MODIFYI
I DATA -OLD ISF~ ARRAYI
I _______________WMFI
I SYSTEM ______WB3F I
DATA 6 _____________
EXEC -CEAR. TAT-TMOD' TO TART-TO
___ )•ESF 3 _
COPTRNEW COMPUTERCONTROL CARDS 1SF CONTROL CARDS(IDIPR) TO EXECUTE
IDIPR TART
BASELINE
.. *TRANSFER
IFCOMPUTER FL
~(GENERATED BY +(CREATED BYTATSE PREVIOUS TART
SF USGR OR SURVEYON PREVIOUS RUN[RUN)I
FIGURE 11TRADE-OFF RUN
71
i 10. -20
UEF CNROL CARDS
•!• J TO EXECUTEARTAw
flfl;T9 1
• :• o . .',RCEMPUTER TRANSFE
FIL
RFIGURE 12
-• SURVEY RUN
S~72
UEF OTRLCAD
77 ' 7
ports, are saved on the ISF. This file can be updated as many times as areneeded until the user is satisfied with the result. If the SGR/CEAR optionhas been selected and provisions made to save the work files, the user isready to run TART whenever IDIPR executes without error.
7
II
73
Section 4
PRINTED OUTPUTS
During execution, a number of printed outputs are generated by IEMCAP.This section describes these outputs and gives examples. The examples arefrom a test case called the "mini-system" which is presented in detail inSection 5, Example Test Case.
4.1 IDIPR PRINTED OUTPUTS
4.1.1 Error Messages
During input decode, if errors are found in the data, an appropriateerror message is printed with the data card. Additional error messages areprinted during initial processing if errors are encountered during fileupdating or in generating initial spectra. Examples of the input decodeerror messages are shown in Figure 13. Note that some errors can precipitateadditional errors. For example, if an error occurs on a PORT card, it isdeleted; i.e., it is presumed not to exist in the input data. The SOURCEand RCEPT cards following the deleted card will therefore have no heirarchydata, and messages to that effect will be generated. The error codes arediscussed in Section 4.3.
4.1.2 Input Data Card Listing
After all cards have been read, decoded, and checked for errors, al]isting of these cards is printed. An exemple of such a listing is givenin Section 5.
4.1.3 Intrasystem Signature File Report
During initial processing, a report of all the data thnt comprises thesystem for which the analysis task is to be performed is printed. As thisdat.a is also saved on the ISF generated by IDIPR, this report gives alisting of the data on the new ISF. During initial processing, a report of
the old ISF used as input to IDIPR may optionally be printed. The ISFreport consists of a summaty of the system data and the equipment data,followed by each equipment's frequency table and initial spectra of eachport in the equipment and, lastly, the bundle data. The spectrum printoutfor each port in the system consists of the initial broadband and narrowbandemission spectra and receptor susceptibility levels dependent on theirspecification as a source and/or receptor. These levels are obLained fromspectrum model synthevis from the input data and quantized to the equipmenttable frequencies. ýf an old ISF is used that was generated by a TART SGRrun, for ports with no changes to the input data, the adjusted spectra areprinted. Initial spectra aie computed and printed only for new or modifiedports. (In the spectra, -1000 dB indicates no emission and +1000 dB indi-cates no response.) All spectrum leiels printed by both IDIPR and TART arein the units shown in Table 1. Example report outputs are given in Section 5.
74
***CARD NO#.FUnIP2930,•3.FAAT
***ERROR NO* 3
****6NO HATCH FOR ALP4A CODE***THIS CARD WILL BE 0 LETED**
"***ARO NO, 7
ANTzCOtTAgDI9HZ(Uo2)
***ERROR NO. 3
#**'*NO HATCH FOR ALPHA CODE__. CHCARD WILL BE DELETED_ _ _
OCESIGNAL.3j.., O ?Q.E3.3a•6_1JETPI_(2_ Eiji.E-6)j 10_,VLTS,4.E6------------ ------------------I*CARO NO. 22SOURCE=SIGNAL,3..,20.E3,4.E6,RECTPL(•2O.E3,1.E-t)jO1GVLTS,'.E6
"**ERROR NO. 5
"*****ILLEGAL SYNTAX**THIS CARD WILL BE DELETED***
"' CARD NO _ _ 2 _.. . . . . . .
RC(H)=RF,,30,iE6,4EiE-9,3E6,SPECT(-.5E6,-18.2t,,71.8,.SE6,9-8.2),a
"***ERROR NO. 16
"*****WRONG MO. CODE FOR JOB TYPE
4±J±TIARDO.&L 25, T O --
PORT:AIDOT,WIRE,•9(NOL2,B2W2,A2,GNO;GND,NOTEX)-, ýOt . . .
***ERROR NO.
"***NO. PARAMETERS INCORRECT_*!THIS CARD HILL 9E DELETED--*
SOURCE=SIGNAL,3..,20.t3-,..E6,RLCTPL(20.E3j,._-E)9,JVLTS,4.E6--------------------------------K***CARD NO. 26
SOURCE=SIGNAL,3..,2O.E3,-..~i6RkCTPL(?0.E3,1.E-- ,),i3VLTS,'..Eo
**'ERROR NO.
****#ILLEGAL SYNTAX"**THIS CARD WILL 9E OLLETED*'*
***ERROR NO. 26
"****MISSING SO/RC FOR PORTPORT AIDOT OF EQPT, UHFC) WILL BE DELETED.
* 'ERROR NO. 2tFIGURE 13
EXAMPLE IDIPR ERROR DIAGNOSTIC OUTPUTS
75
-~~M I ~ - M
4.1.4 Debug Printout
An option is availabl2 to print debug information that, if used inconjunction with a source listing, provides internal flags and messages toaid in debugging.
4.2 TART PRINTED OUTPUTS
The TART outputs are summaries of EMI margins between emitter-receptorport pairs and to the total received signal from all emitters into eachreceptor. These nargins are p:intea for each frequency, and the integratedmargin is also priihted. For specification generation runs, summaries ofemitter and receptor spectrum, adjustments are printed. Optionally, the usermay request supplemental printouts which provide detailed transfer model out-puts. These outputs are described below in relation to the four TARTanalysis tasks.
4.2.1 Specification Generation Outputs
Outputs are provided for the three SGR phases: emitter spectrum adjust-ment, receptor adjustment, and unresolved EMI. After these, the finallyadjusted spectra are summarized for each port.
4.2.1.1 Adjusted Emitter Spectra Summary - An exawnple summary of theadjusted emitter broadband and narrowband spectra is shown in Figure 14.In this, as well as all other emitter-receptor pair summaries, entries arelisted by ascending frequency from both the emitter and receptor frequencytables. Hence, the first column gives the frequency, and the second givesthe base (i.e., EMTR or RCPT frequency table) from which that frequency wastaken. In the third column, the letters "REQD" are printed if the tablefrequency interval containo the emitter's required frequency range. Thetransfer ratio in dB, which is printed next, includes all transfer from theemitter port generator to the receptor port load, including filters, antennagains, propagation loss, inter-wire coupling, etc.
The next series of output columns give narrowband and broadband emitter
spectrum and EMI margin data after adjustment in conjunction with thereceptor. The EMI margin and received signal level are printed at bothemitter and receptor frequencies. However, the adjusted emitter spectrumlevel, the amount of spectrum adjustment, the relation to the presentspectrum level and the adjustment limit are printed at emitter frequenciesonly. In addition, the bandwidth factor in dB is printed for broadband.Narrowband and/or broadband outputs at a given frequency are not printedwhere the EMI margin is below -900 dB. This is true for all port pairmargin summaries printed by TART.
The received Eignals at the receptor frequencies are comp-ited by inter-polation between the emitter freque.ncies on either side. Hence, if one ofthese emitter points is -1000 dB (indicating no emission), the interpolatedsignal will be betwet.n -1000 and the non-zero emitter point. An example of
76
I o - 0. *. . .~b~. *c E . . . . a.0m 4... .~'f* U .,I) DoL .1 -)4 *S* fIMP) .4 -4 N ,a t yw1 9 w h. t N .4 ty c.4,44 1 1 1 -4,.4 -4 *4
mf I') mf m mf I') on) on) on) Pf) mf ~ fi
0
Ite -W *
ci4 - n j in r0 D0 N 01 4 (Vl*fw Fn tvr .0If -0 S0 U% CZ cz SOS OSP-& .0- N N NU I cy Nj N N N NN NOO
$- . . .......... . . . . . . . ..14o .4 ,-1 aL .4f*0M.N* N'2U% 01 )7N, C c l44c .c JL aN " " N
odI U) "IgO
- -a M 9 " .4 a''OO C'j In'0 m'N fn m m " W) W) 34F".Q400 DOa..N NCo Qt 4 g g s
S.I- 0(A 4 nI
j w
C: C: C!a ý .. It *ý *ý * . .. . . . . . . . . . . . . .w 2 N.3 a4 a, aI az a3 (2 C2 N3 N3 a" C l a~SClaI
MN.. x . if) if f f 4 .L.o N i) if f f f f U9)
7a 0 wI 690 a 0 a 0 a ' a p a .4 4% N.l .11 ' a a% w aD a aD 0
w go: -9 -.
N- D
KO 0 . .0 0 . AL) N4 4 w 0 .4 fl. s U% .0 01D*.S IV. ý
N- 4f , N- 4 v4 . 0 4W ,0 nej 4a ,4 4) U N. I Mf) 1 P 4 C
L 00 ci 59L m C3 m4.t:V, it, 1; 4 u No
Cu w
ly 1 1 71. LT . L I 4L 5; F.I . I, f- 7 4ý C 7 U C. **tAur roy L'.D7.C . a V ,w %o 4 f&4 rww0Wn&U 6 ,wC 0 Cl) re *li l -W SS0" a5&Wu 4 U I-
4 4~ o %I Awt D00040It1 ,Nýf % % W w % ,wa
ww w w
C:,OW 9,. 1*C 414
a f77
t uj w; 13 1:7
&I
*WP 0
Q~
W a
~-IA tn Nt
S -~U
of 001
C, I ý S. C! ItP
a. CL ~ S P'u
I- w
* iz
P 3 0 a
V) -a an 0,L
C. aco jan 6- Z. <4~-
0 ..
a-~~ a ICEC#
5- 0 I,
OUJ .. U, 0 &
10 I 01.4 Io j W r0
W 4 .- I~ ,tp..~O'i ~ ~ 78
V such a case is in Figure 14 at 4.88585 GHz where the brcadband receivedsignal is -317.3 dB VA/MHz caused by interpolation between 17.5 dB at4.02753 GHz and -1000.0 dB at 8.514435 GHz (not printed). Such pointsshould be ignored.
4.2.1.2 Receptor Spectrum Adjustment Summary - After each emitter has beenadjusted in conjunction with each receptor, the receptors are adjusted.This receptor adjustment is made in conjunction with the total receivedsignal from all emitters coupled to the given receptor. SGR prints asummary of this, as illustrated in Figure 15. The frequency is printedfirst, followed by "REQD" if the frequency is within the receptor's requiredfrequency range. Next, the adjusted EMI margin to the total signal, thetotal signal level, and the adjusted receptor spectrum susceptibility levelare printed. The amount of adjustment and the relation to the adjustmentlimit of the receptor spectrum are also printed.
4.2.1.3 Unresolved Interference Summal2 - After a given receptor port hasbeen adjusted, SGR scans through the emitters coupled to it and computesthe maigins. If the maximum margin exceeds empl on the SYSTEM card (orTART additional input card) a summary is printed, as illustrated inFigure 16.
The outputs in this summary are similar to those described inSection 4.2.1.1 without the adjustment data. The frequency, frequency base,and transfer ratio are printed as before. The receptor spectrum level atthe receptor frequencies and the interpolated values at the emitterfrequencies (identified by an "I") are printed. If the table frequencyinterval is within the receptor frequency range, an "R" is printed also.At each receptor frequency, the relation of tle receptor spectrum level tothe adjustment limit is printed next.
Following the receptor outputs, the EMI margin, the emitter spectrumlevel, the relation of the spectrum level to the adjustment limit, and the
P received signal level are printed for the narrowband and broadband emitterspectra. The interpolated emitter spectrum values are identified by an"I," and the required emitter spectrum points are identified by an "R" nextto the spectrum level. The bandwidth factor, in dB, is also printed.
4.2.1.4 Finally Adjusted Port Spectra - After all of the spectra have beenadjusted and all unresolved interference has been determined and printed,the spectra for each port are printed. The format is identical to that of
C the IDIPR initial port spectrum outputs.
4.2.2 Baseline System EMC Survey Outputs
For each case with maximum EMI margin exceeding empl, CEAR prints asummary, as shown in Figure 17. The format is identical to that of the SGRUnresolved Interference EMI Summary except that the relation of the emitterand receptor spectra to their adjustment limits are not printed since thereare no adjustments in this analysis. The discussion in Section 4.2.1.1 for
* the SGR output regarding erroneous values due to interpolation with onespectrum point at -1000 dB also applies here.
79
• A 0 J U C T E 0 R E r E v 7 o R S P f T 0 U M
SUBS 2 CN! EOT 6 a TFF PORT 2 I !FF•PF
VRqE0LXNCV BIJUSTV RCVO AUJUSTED A'3JMT SPCT LEV C
S-- 4"rzi ENT "" 't[NAL SPCCTOU9 AMOUNT TO LIMIT
S.E3032E*03 -56.3 '.6.' 103.4 0.0 30.0t.6•Eu?IE+0I -56.3 4b.? 103.0 -.0 3d.03itE32?Sff4' -56.3 46.' 103.0 0.0 30.05. a392E*QO6 -56.3 49.? 103.a %*G 30.E
t', 70Ee+5 -56.3 46,? t03.0 O.j 30.02.07760EWS ,56.4 46.? 103.0 3.G 30.01.90733F*Qr -6.0 q7.2 103.2 .2 29.8
1,34 *Dr. 12.1 14r.1 133.G 33.C 3.C1.53202f+06 12.2 145.1 133.j 3 2
.u O.G2.59915£*00. k2.1 15.1 133.J 30.0 0.0k.•6644fe0• 11.1 144.1 i33.u 33.0 0.09.l9318Eo06 -33.0 73.G 103. Z .0 30.u1o?2Aq5E+0? -47'.2 55.1k 103.0 2.0 30.0S3.251e2VO07 -6r.1 37.9 103.3 3.ý 39.06.11 30E*07 -72.0 3u.2 t13.3 ý.3 30.01.1010E.08 -AI.2 21.4 133.J u.6 30.0E,'tA"6-F +ee -43.2 9q.A 103. u 0.0 39.0
S.06?e9Efoq -5C.? 52.3 103.0 3.3 30°.S'.650W.'. -ftIPIt 3'.2 103.. j.0 30.01.03003E009 qC00 31.t ';.1 23.3 a.y 33.01.0q080F.0O - A. A. 56-.2 103.3 0.9 30.0I.43.3M.E+3q -113.3 -10.3 103.j 0.3 30.G?%?45.•AE+0q -125.3 -22.3 103.0 t.0 30.05.0090?E.'q -7,.5 25.r 103.C 3.3 30.09.57095£.q6 -144.3 -41.3 I03.5 4.C 30.01.° 000E+iO -*16t.3 -p3.3 133.3 ý.3 30.0
FIGURE 15SAMPLE OUTPUT - SGR RECEPTOR SPECTRUM ADJUSTMENT
NOTE: The program also prints out "BASELINESYSTEM INTERFERENCE FROM TOTAL SIGNAL"which includes a TOTAL INTEGRATED EMIMARGIN. The printout is identical to thatshown in Figure 18.
80
I- c-r' A~4 2
I 0.).4 .4.4 .4 .4 .4.IV 041. Ieg
* 0£ 0o 4' N2 £ 1554 mV 0
C.I.. . . . I
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21 0 Z t7' 0'2 NU')..40
5-0 0% 1.£-P .0Nit0'U'0fP20Pt _
w~£ 'JS ' 1.4 0. 1- 6- *. .N . 1-1 0..)N. .4P2 40' 0.1'NOfP2.IN0 11j C ý=LI 4 *cl'I wc lC iC ýC ýt 2 u. c c C ~Lu
S 4 4.45. l 94l Zl r 44.4. 9P0 P~4 4 44 4 4 C14 4,4 44 44 o 4 0L O4 o, m 1,. 4. u. 4 WIga. 444 4P2sP2, MMPN .4 1 .4 4.4 4. 41.4 N N SN In K to 4 4 4 CI r a. g.4 416.4.4
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0~~~ ~~~~~~ i 4' l.£ 66 11 ll ,l44 -. 4.4 Il S. I,.h 15 .4 g. 0.4 .IN%
P2 00 . 1 1-wI 0 . .0 0 0 0 - . ft, I- a 1, 0 0 0- 6. P 0 a I-0 I. 0 -o1 0. f -w6
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d N5 N~ -t C £4O000'....4m11N N N4p£ Ok M I 411.'
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810
-- qqFT7a -W-77- -
6ASELrws SYSTEM INTERFEREN.;( FRON TOTAL SIGNAL
.(CPT -- SUBS a CNI EQPT I a UMFCO PORT 2 x CCHLO WUNCNANGEO)
A.OTE - R x IN REQO- RANC,-I- --- NZIAROL444 O-VALUE
-F4(QE4NCY- RECEPTOR ENI TOTAL RCVD(HERT7) SUSC LEVEL MAqGIN SIGNAL
704"f4I043 164.0 7.6 110.1
1.36E+4O 103.0 88010.6
2.4.576E+05 103.0 -1'.'. 85.64.*152E40 160.0 -20.4 82.79.630&E*05 103.0 -24.9 76.1
4_94" 3-- *34 -30.6 72.'.!.9322E+06 1,03.0 -35.7 67...7..'.*13E.06 103.0 -.2.2 60.811.5729EtC7 103.0 -.*7.3 55.83 * j,57E4-Q' 103.0 -i1.1 51.9b. 2915E+57' 103.0 -,1.? 51.319-26444E44----404.4 -34.7 68.32.blb6E4.26 -27.0 R 136.0 79.04-OM3E.# -27.0 R 96.9 69.91.0066E+09 103.0 -92.0 11.0-2.4-1;W449- 1da.# -103.3 -.3'..02bgE+09 103.0 -109.2 -6.26.9salEt09 -1-40464 -174.3 -71.31.biobE.10 103.0 -1103.0 -1000.04221ff.10 1IOLO -119030 -1000.0
TOTAL INTEGRATEO E041 MARGIN a38..t
FIG'ZURE 18SAMPLE OUTPUT - CEAR SURVEY TOTAL SIGNAL EMI
86
fo 001.~~o ~ o 0* 018101 111O101
I w
43 W* 0 * 14 .4 .4 4 -l.
4* 4
o 0 42o.a
U " 0 (f 111. 4 11. 414 ICY1 2o I4 I
4 4
0.0
- I 42m . 1 1 % IP)I')M ý'!**%. .fJ
it Z I o, f 0P 0* ,. 0 -S 0
, W *fl-4 4 * . 4 *4 4 * W *A 4
.j j W
". .4 .4 4 .4 1
04 w
C3 cV) I 0QOa -, 4* 4 . 4 l C
7 A I 1 40Q900 .C .1 1# 0 1N 1 1~ 1
a. 2 a 4 ......... ..dig W 2 t 00 0 a 10 0.4 I *0%0 r4)MMMD' 7V4
w 0 N N N N N N N N . d 4 011111 4.S4ý4' 4. .4101 4110 4I0 6 1 46#W4 e
I- 00
or 0 . . . . .4.. . 1.44
0- fi 1- 0' - o CA CD 04 01 1 aS 0 I0 0 C506 C3oooC ?CaC.,2C M iN'
W) C Z 0. (AHL
0 0Y P0 p- 4: .4f y4 N)i A4 t
.4. .401"l 0 0. .4 4 4 4 * t .4.4 4 # 44 .4 4r 4,m 4 .40 1 #
Wi- a04 0- a0-W qww a -2 0. 2 ~ ~ ~ I 0.44 P~o a j@ . .4~ . O'.. m ..0*(a.4 s- ~ I~A. 4L
C42~s~~i o o CC, go A 40 le I- I 0
14. W W4JWW90a~0~iW0I acWW WI 4wWWW W w W WWW. Wt
'D I&40 P%~. 10 1, N. f 0 014 0 M(0 .4 M
*45 ~~O .*O! OttI- 4 OA
83
0 ~ ~ 0 I-. L
a 0
w Q, CC.
() 64
0. 0
w w
0 - Q. L I c
1.4
0 1 4 04 - -ac~~~ ~ w K ,wV
rrwAc
6-4
4n 4) V$ C0 0> Ccw :s -41*.Wýw u
O 0 0 w 0 L& .5.4..
U. <0,4 .
I. t.- r4 Zý P0 *0 0 wK~- 2q 4 UJ .K I..4.~*
W ~ ~ L to 4e N wN~(~
I.-
4 84
An output is also printed giving the margins to the total receivedsignal, and an example of such an output is shown in Figure 18. The fc.-matis similar to the SGR Receptor Spectrum Adjustment Summary except that noadjustment data is printed.
4.2.3 Trade-Off and Waiver Outputs
These outputs are similar to those for the baseline EMC survey. Ifthere was a path between a given port pair in the baseline system analysis,the baseline EMI marbin and the change in the margin are also printed. Ifone or both ports were added or there was no path in the baseline system,the outputs are the iame as for the baseline survey. The trade-off andwaiver analysis outputs are illustrated in Figurps 19 and 20.
4.2.4 Supplemental Outputs
TART has two types of outputs, normal and supplemental. Tb? normaloutputs, described above, do not provide information on emitter-receptorpair coupling other than the composite transfer ratio. The supplementaloutputs provide such information, but because they may be quite voluminous,these outputs are optional. These outputs are printed if the SP option isspecified on the TART contrul card.
4.2.4.1 Antenna-to-Antenna Coupling Supplemental Outputs - The antennacoupling math model routine outputs provide information on propagation pathand the factorb involved in computing the path loss. The basic format, asshown in Figure 21, is used for coupling on aircraft where the wings are notin the propagation path, coupling on spacecraft, and coupling over ground.The first rwo parameters, ISEG and lAP, apply to antenna-to-wire and arealways zero for antenna-to-antenna coupling. The next two lines give thelocation coordinates of the two antennas and the main beam angles. Foraircraft, the cylindrical coordinates (RHO and THETA) and wing location codes(LWA) are given. (The LWA codes are in Table 5.) Following these outputs,the antenna pattern model parameters are given. They are THO and PHO, theantenna main beam angles in radians; TH and PH, the look-angles betweenantennas; G, tne computed antenna gain in dB; and IERR, the error code.Each of these parameters has an "X" or "R" suffix to indicate transmit~ngand receiving antennas, respectively.
In the nexL ine the basic propagation parameters are given. The firstfour designate the propagation path, and their meanings are given inTables 6 through 8. As an example use of this code, Figure 21 showsISH = 10, ISHW = 0, IROX = 0, and IRO = 13. From Table 6, the ISH codeindicates that wing shading was considered but rejected because the path didnot intersect the wing. ISHW and IROX are zero since there is no wingshading. (They are always zero for spacecraft and ground systems.) ParameterIRO designates the path model used. The first d-git gives the relation tothe vehicle body, and the second digit gives the path. In this case, bothantennas are on the fuselage, and the path was computed iusing the conicalspiral model.
85
'3ASELINS SYSTEM INTERFEREN.;E FRON TOTAL SIGNAL
<CPT -- SUBS a CNI EQPT I : UHFCC PORT 2 • CCHLO (UNCHANGED)
AOTE - R a IN REGO RANG, I- -- I,4DO.A..i-.-V.LUE
E-4Q"-GU Y GY- RECEPTOR EMI TOTAL RCVO(HERTZ) SUSC LEVEL MARGIN SIGNAL
-76"f4 .OIO~•I t16.0 7.0 110.11.53601E04 103.0 1.0 10.0
. ... i. %. - 4 4 - - -6.0 96.06.1o4CE*04 103.0 -11.0 92.01.2ff•lb o., 103.0 -14.4 88.62.'576E+05 103.0 -1:.'. 65.64.9052E445 103.0 -20.4 02.79.8304f+05 103.0 -2?.9 76.14 . r64 .34--.-4n.t4 -30.6 72.,3.9322E+06 1,03*0 -35.7 67.4.7vd.3E+06 113.0 -,2,2 60.8
1.5129EqC7 103.0 -.#7.3 55.83.o1qST7E4-f 103.0 -,1.1 51.96.2915E+51' 103.0 -. ,1.7 51.3AI,•SSE'-44-- - 4UO- -34.7 68.32.6bi6E.ja -27.0 R 136.0 79.0
-P. 0,.E 444 -27.0 R 96.9 65.91.0066E+09 103.0 -92.0 11.0
-2, # -3E i4 1941.0 -103.3 -. 34.0265E+09 103.0 -109.2 -6.28-:9si1-tt -- 4"04, -174.3 -71.3106106E+10 103.0 -1103.0 -1000.04,2212.+1G 13Lo -1103.0 -1000.0
TOTAL INTEGRATED EM; MARGIN : 38..
FIGURE 18SAMPLE OUTPUT - CEAR SURVEY TOTAL SIGNAL EM!
8
72 ;,86
-~ A-g-
aI 31 01 6 1 1641 6I6
I L
-r~~~ lgO 0' .4 Q .* .
* v1 t - fw 1, VýP 10 . 6C %0*I.4 -4. .4 .4 .4.-4.o .4 .4 *
o j~
044 4 j34
014-S N ^fmf4
z I IP.34f " jC fl&N4 C' t CJ c 6'JmNNN
6l c k v4 4 4 ' flc'NN~0f j 4~4'ft
1.4~~~~ .I' .4. .4.4 .4. . .46. .
0 . . .4 .' . .k . .4. . ' ., , .
I
ccU
r r.40 4 4.000~.,~'
c4
-4.O 4 .4~.~ DS C.4 94 4 4 4A .4 ..4 Z.4Oi
4 C. eq N444... (\,.I)?~4 N N .44e.4 4.4I4. .4I4 L.00.4 -4,4 . L4 4 . . 3 * 1 *s
HV I
Z4 W 04 w 0' C ,kh .0 w. ,c
0. ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ C C;..J .C 4 6,.' N V~~S.' 0-N .4.'14X 1 L Uc:A* . w
W J ' 1A 0'IS. ' . 6.C'0.4 *1.~"...C *4"t . 4j4 % 4
64 ~ ~ u I% c4 042 wJ 4.4 mP .j % .40 t7 ,44....14 J,.f...44.-".. .U,.'4N0 0. O H * 4 .4 4 4 4. . 6 S ~4 1 1 1 6 9 6 . . . . .
.~~ ~ ~~00t ~ . . . . 'N.0'. '. . O 4 4 C~ . .~C ..
or N~ , N4 f
2N '' 4 c1.Nt t I4 ~ jýý 4 ý ,J
a 4 H y 0.0 ~ .tv .~ N t5' Cv N. 4~ N 4'ý a- - Iru f
0 I 4
u -C VI - 4=4 14 m4*2 ,CýC4 eq 11.' w** m C2 C.
U4. .. . .. . . ***0- c***
1.- I2 i
tj C.O c C. e
z r. 44 * 4 4 . +- #T4 A 4444 4 44 4 44. 4 4 44 4U. 11 1AL .4 -1 "1 'u t IA Lu 4. , t, U , IA w .w 4 41A I.4 W .L& 4. U, w. u. L4. I UI.4 .
U.~~~ ~ (V C, N" I U. G4 N cc. . ~ '4' . '. U. 4'' .0 .7 .
C. uj 087(I' 1'5
4 0'
S. w
I'li *-
#1 T z
o z~z
T W4
w0(5of M -9 o
L re (A II
6- LL 1., , 2
0 .- -Z ' or7Cl - 0c .
01' w u-q
I~ -dor N c I% N.. N '
M, Ix fC05 a,r u iv~
U. lj(5 Me'r1J
141 ~ ~ ~ C ft l l g i.. ~ ~ f j . )
t0.4 1e 1.4 1- U
.4, w r- i
- (1, C.)( 'u. 1 -1 W. *
IV 4 . C
.4 0 88
- - NOOIFIEO SVSTEM INTERFERENCE FROM TOTAL SIGNAL
) RrPT--- SURS = CNI EQPT I = LHFCO PORT 2 z COMLO CUNCHANGED)
W- xg - at =-4U-A&R -- A0g I - TERODOIATCI VALUE
-- fREOU#4N"- -RECEPTOP MO0- E$4I (IL EMI 44ARGIN TOTAL(HERT7) SUSC LEVEL MARC-IN 4ARGC! CHANGE RCVP SIG
.. .66&OoE+03 103.c --142* -l'2.5 -. 0 -39.!1.5360E+04 103.0 -t42.6 -142.1 -10 -39.5358728--48 --- 1-4.- kq? 9 -2. -4--4 - ------6.1440F+04 101.0 -142.F -1,2.t -. 0 -39.b
-- - t.288E+0 103.0 -142,7 -142.7 -. 0 -39.72.4576E105 103.C -142.8 -14?.8 -. 0 -39.8
- 4.9152E+05 103.C -118.1 -1-38.2 .1 -35.19.8314E)05 13.C -L.,7 -. 2.6 -. 0 6G.3
3.9322E+06 103.c -42.4 -42.% -. C bc.6-....7. E3+.6 103.0 -101.6 -103.1 1.5 1..1.5729E+W7 103.0 -125.7 -127.5 1.8 -22.7
-.- ,1457E+07 103.0 -153.0 -153.0 -_. -50.06 .2915E+07 103.r -_151.4 -154.4 -. 0 -51.4
2.5i66E+08 -27.C R 6.0 6.1 -. 0 -20.9-- v 9332-4-A -. 27.6 R _40 - -. 0 --. 0 -27.C
1.0G66E*09 103.0 -154.0 -152.4 -1.7 -51.0-----2.qi-3-36+vq -103.G -144.0 - 196. i -. 0 -43.0
'.,265E409 103.0 -127.3 -127.3 -. 0 -24.3
1.6106F÷10 103.G -1103.9 -1103.0 -. 0 -1000.0-...-3. -e-211-1t4E-- -13.0 -1-1-603.0 -1103.0 -. 0 -1300.0
TGTAL -INTf:PATr $I NMARGIN4 38.2RASELINE SYSTEM TOTAL INTEGRATED EMI MARGIN 36.4
FIGURE 20SAMPLE OUTPUT - CEAR TRADE-OFF OR WAIVER ANALYSIS TOTAL SIGNAL EMI
89
,' e'
-.-- L$£Ga~--8- ..ZA& -nX v Z RHO TH TH0 PHu LUA
- . .. ... - 55.0 224.0 55.0 1.5708 P.0000 0.0005 IRCP7 0.0 -25.0 129.0 25.0 4.7124 0.0000 0.0000 1
_TH;W@,NC~X,T"4,tpKXXGxt %[R
0.00000 0.0000 2.?7069 6.25319 -1.68t'.5 0W4CRP•ON0RHeT4RPHRORG IERR
0.00000 0.00000 .07090 3.14159 -1.66038 0
ISH ZSHm IROX IRO 0H9N OUR TFS PRP SFWF SFC GX R-10 0 0 13 103.2 0.0 -IC01.2 139.2 Z.C -57.f -1.7 -1.?
-- N0 MING SH4ADINGFRED TFS SFC SFW PRP
7.6000E.03 0.0 -. 2 0.0 -3.6-1.6360",604 0.0 -. 3 0.0 -3.7
3.0?20E#04 0.0 -. 4 0.0 -3.8-- ,.ý444•044 0.0 :6 0:0 -4:0J £.22688E05 0.0 -. 9 0.0
S.467 -A6 9 -1.2 0.0 -*,6%.9152E.05 0.0 -1.7 0.0I al.4304L.-8 0.0 -2.4 0.3 -5.81.0S661E*06 0.0 -3.. 0-u.
-3.54,22E#44 8.0 -4. 0.0 -.7.8•43E.06 0.0 -6.7 0.c -13.1
--.. a.•.44-.- -.. 0 -9.4. 0.0 -17.53.1407E+07 -1C.8 -13.0 0.0 -2I.1
-4.•-E41.7* -16.8 -17.8 0.0 -38.01.2583J*08 -22.8 -24.2 0.0 -ý,.4
--2v.164+F06 -24.8 -32., 0.0 -o..75.0332E*08 -34.9 -43.2 0.0 -81.•
.j n -- .- 44,9 -57.7 0.0 -10L.92.0133E+09 -46.9 -75.6 0.0 -125.8-t.424 "09 -32.9 -96.8 0.0 -1!3.03.053!E+09 -58.9 -120.7 0.0 -b3,0
-i,4614 •*14 -"5.0 -146.3 0.0 -c1,.b3.2212E*10 -71.0 -172.G G.c -246.4
8,8303F+03 0.0 -. 2 0.0 -3.6
-1.biolEf04 0.0 -. 3 0.0 -3.73.1233E*04 0.0 -.4 0.C -3.8
-3.673OF4£1t 0 0.0 -1.. 0.01.10ZTE405 0.0 -. 8 0.0 -6.2+..-..??[A• -- 440O+ -1.1 0.0 -*,$3.9073L+05 O.C -1.5 0.0 -4.9
7.3"4tl.E95 0.0 -2.1 0.0 -5.5103o0f0*0c 0.0 -2.9 0.0 -6.2
2.91+6 0.8 -3.9 0.0 -?.30.8882E*06 0.0 -5.3 0.0 -8.79..4#....0--- -. 1 -7.3 0 -10.7I.7290E+07 *" -9.8 0.0 -15.73ý2*16f•+97 -13.2 0.0 -27.6
5.1153E+07 -17.6 0.0 -37.5
2.1630E408 -30.5 0.0 -bl.4-...... -- .4 -39.4 0.0 -75.87.6504Eo0b -38.5 -51.6 0.0 -93.41.030£E409 -*&l.1 -58.2 0.0 -132.71.0900E.09 -4t.6 -59.6 0.0 -1C.51.4•64E+09 -4'4.0 -66.5 0.0 -113.82.7OtOE+09 -.69.5 -84.2 0.0 -137.1
FIGURE 21SAMPLE ANTENNA-TO-ANTENNA COUPLING SUPPLEMENTAL OUTPUT
BASIC FORMAT
90
TABLE 5
WING ANTENNA CODE (LWA)
LWA MEANING
1 Not en wing
* 2 On or suspended from wing bottom
3 lop of wing
S4 Forward edge of wing
5 Aft edge of wing
6 Tip of wing
91
-z WRM A:7 XT-ý7,
TABLE 5
WING ANTENNA CODE (LWA)
LWA MEANING
1 Not on wing
2 On or suspended from wing bottom
3 Top of wing
"4 Forward edge of wing
5 Aft edge of wing
6 , Tip of wing
91
S
91
TABLE 5
SHADING/PATH AROUND VEHICLE CODE (ISH)
ISH MEANING
1 TOP OF FUSELAGE ONLY
2 BOTTOM OF FUSEIAGE ONLY
3 OVER RIGHT WING ONLY
4 OVER LEFT WING ONLY
5 FUSELAGE TO RIGHT WING
6 FUSELAGE TO LEFT WING
7 FUSELAGE TO RIGHT WING TO FUSELAGE
8 FUSELAGE TO LEFT WING TO FUSELAG
9 FREE SPACE
10 WING SHADING CONSIDERED BUT REJECTED BECAUSE PATH
DOES NOT INTERSECT WING
TABLE 7
WING EDGE CODE (ISHW)
ISHW MEANING
0 NOT AROUND WING
1 FWD EDGE
2 AFT EDGE
92
TABLE 8
ANTENNA - FUSELAGE CODE, XMTR ANT TO WING (IROX) ANDANTENNA - FUSELAGE COLE, WING TO RCVR ANT (IRO)
FIRST DIGIT (RELATION TO BODY)
V UTIROX2 IRO2
VALUE TRANSMITTER WING WING POINT (XMTR RECEIVER"ANTENNA POINT IF NO WING SHADING) ANTENNA
1 ON ON ON ON
2 ON OFF ON OFF
3 OFF ON OFF ON
4 OFF OFF OFF OFF
BLANK (SEE NOTE 1) (SEE NOTE 1)
SECOND DIGIT (CURVE)
VALUE CURVE USED
0 STRAIGHT LINE ONLY
1 STRAIGHT LINE AND CYLINDRICAL SPIRAL
2 CYLINDRICAL SPIRAL ONLY
3 CONICAL SPIRAL ONLY
NOTES:1. BLANK IF ANTENNAS HAVE SAME e COORDINATFS OR FREE SPACE
2. IF NO WING SHADING, IROX iS ZERO AND IRO CODE APPLIES FORTRANSMITTER ANTENNA TO RECEIVER ANTENNA
93
X Y z RHO TH THO PHO LMA.X.TR t&.6 -4*o 210.0 93.1 5.7187 1.74S3 0.0000 2RCPT 0.0 113.0 625.0 113.0 1.5708 0.0000 0.0000 1
TA4xjPmsxrTHxjPmXfGxIERR
1.74533 0.00000 1.4',169 3.17?66 -20.00000 0T4",PHIORT44RPHR,GRIERR
0.00040 0.00000 2.17801 .41266 -1.46d66 0
TH40XP#4XTHXPHCXGXZERR1.74533 000000 .7b060 4.19732 -20.00000 0
THORPHORTHRPHRGRIERRC.o0000 0.00000 1.87328 .13664 -7.62128 0
ISH ISHW IROX IRO OHIN OWR TFS PRP SFWO SFC GX GR7 2 0 31 49.3 405.6 -7b.: 145.- 79.0 -4..0 -23.0 -'.6
ISH ISHW IROX IRO DMIN OWM TFS PRP SFWP SFC Ox GR7 1 40 41 25i.1 223.6 -47.8 131.3 71.9 -.0 -20.0 -1.,
FORWARO FOGE AFT FOGEFREQ TFS SFC SFW PRP TFS SFC SF4 PRP PROP
RCPT FREQS7,68004L03 0.0 -. 0 0.0 -21.5 0.0 -., G0 -2..o -21.51.5360E004 0.0 -.6 0.0 -21.5 0.0 -.c O.C -27.b -21o-v4Z2•4c&8•J .....-.. 0 -. 0 1.0 -21.5 0.0 -. 0 0.0 -27.b -21.•6.1440E004 0.0 -. 0 3.0 -21.5 0.0 -. c O.0 -27.7 -21.51.22a8E+05 0.0 -.0 0.0 -21.5 9.c -. 0 0.C -27.7 -21.32.4576E+05 0.0 -. 0 0.0 -21.5 0.0 -. 1 D.C -27.7 -21.54.9152•*05 0.0 -. 0 0.0 -21.5 0.0 -.1 0.0 -27.7 -21.59.8304E+05 0.0 -. 0 0.0 -21.5 0.0 -. 1 0.0 -21.7 -?1.>
0.... -. 0 0.0 -21.5 0.G -. 2 C.0 -27.8 -21.53.93220406 -. 6 -. 0 0.0 -22.1 0.0 -. 3 0.0 -21.9 -22.17.54..3E*06 -6.6 -. 0 0.0 -2s.1 0.0 -. 0 0.0 -28.0 -26.01.5729oE07 -12.G -. 0 -. 1 -3-.L, 0.c - 0.0 -26.1 -28.13.14571#07 -18.36 -. 0 -3.1 -.3.2 -4.3 -. 7 D.C -32.7 -32.76.2915E007 -24.? -.0 -6.1 -52.3 -10.4 -1.0 C.0 -39.0 -39.3
2.S166E4.8 -36.7 % -12.1 -70.3 -22.4 -2.0 -11.0 -57.15.4332E+48 -42.7 -. 0 -15.2 -79.. -8,• -2.5 -8.c -6u.9 -66.91.00662+09 -48.7 -. 0 -18.2 -88.4 -34., -. ,C -11.0 -71.1 -11..2.01-33E*09 -54.8 -. 0 -21.2 -97.. -40.5 -5.6 -1e.: -C,'.? -67.74..0265E099 -60.8 -.3 -24.2 -106.4 -46.; -1.8 -1.1 -99.0 -99.0
-4--0534-049 ...- 6.8 -. 0 -27.2 -115.5 -52.5 -1c.9 -10.1 -111.1 -111.11.b106E410 -72.8 -. 0 -30.2 -124.5 -54., -1:.0 -23.1 -12'..3 -1,2.33.2212E+10 -78.6 -. 0 -33.2 -133.5 -64.5 -2u.6 -26.1 -13d.8 -133.5EMTR FREQSE.M60FE*0S 0.0 -. 0 0.0 -21.5 0.0 -. 0 0.0 -27.6 -21.5
2.0360E+04 0.G -. 0 0.0 -21.5 0.0 -. 0 0.0 -27.6 -21.53-2080-04.-.... 0- -. 0 0.0 -21.5 -0. -. 0 0.0 -27.6 -21.51.5009E+04 0,0 -.0 0.0 -21.5 0,0 -. 0 0.0 -27.7 -21.51.439?E*05 0.0 -. 0 0.0 -21.5 0.4 .7 0.0 -27.7 -21.52.7634E£05 0.0 -. 0 0.0 -21.5 0.0 -. 1 G.c -27.7 -21.58.3041040S 0.0 -. 0 0.0 -21.5 0.0 -. 1 0.0 -27.7 -21.21,0000E*06 0.0 -. 0 0.0 -21.5 0.0 -. 1 3.c -27.8 -21.51-glAtr•ofý --- :,- -.0 O.G -21.5 -a"• -.1 0.6 -27.8 -21.51.9541E*06 0.0 -. 0 0.0 -21.F 0.0 -.2 3.0 -27.8 -21.i3,iCTE*O6 -. 2 ".0 0.0 -21.b OG -.2 0.0 -2?.9 -21.o4.0800E*06 -. 7 -. 0 0.0 -22.2 3.0 -.3 0.0 -27.9 -22.25.OO00E*O6 -2.7 ".0 0.0 -24.1 0.3 -.3 9.0 -27.9 -24.17,1991E+06 -5.8 -. 0 0.0 -27.3 0.0 -.3 C.0 -2•,j. -27.3
FIGURE 22
SAMPLE ANTENNA-TO-ANTENNA COUPLING SUPPLEMENTALOUTPUT WITHV WING SHADING
k 95
I
I5E,; I ZAPS 2x y Z RHO TH TH 0 PHO LWA
0.0 55.0 376.80 5i.0 1.5708 0.0000 40.G& I.RCPT 0.0 77.2 332.5 52.2 1.t706 0.0000 0.0006 1
THOX,PH40X, ?X,PNXGX, IERR0.00000 0.00000 1.63816 6.26319 -17.56000 0
ISM ISHW IROX IRO ONIN OWR TFS PRP SFWF: SFC OX GR-----4 ---- 0--- -4 0 41.6 0.0 -73.8 11'..' C6. 6.0 -17.9 C.0
FREQ SFC SFw PRP PRPA AURTO YE YR TRt4SFRCPT FREQS7."cQOE403 0.0 0.0 -3.6 .0 1.39374E-05 2.G0001 02 2.09000400 i.?lo6E-C61.5360E#04 0.0 0.0 -3.6 .0 2.7948E-05 2.COOCE-C2 2.00001.00 c..8 6* 3 F-Gb
'a0.0 -3.6 .0 2.1.836E-05 2.0030E-02 2.0060E100 2.74o5f-G?6.1440k+04 0.0 0.0 -3.b .0 1.11?7j1-a4 2.00D0E-ý2 2.30000E.00 2.De8bE-061.22&&E*06 0.0 0.0 -3.6 .0 2.23"E1-04 2.000DE-~2 2.0000E+00 4.39.5E-OF2.4576E+05 0.0 0.0 -3.6 .0 .4.71bE-0.. 2.CCOOE.-2 2.00001400 1.7?6BF-05-0.9152E*40 0.0 0.8 -3.6 .0 8.9433E-04 2.00001-02 2.0000EttC0 7.03111-059.8304E+65 0.0 0.0 -3.6 u~ 1.7867E-03 2.G0C0t-02 2.0000E40a 2.61251-CL4
1.0.0 -3.6 .0 3.$773E-03 2.00001-02 2.30000E00 1.12.0F-C33.9322E+06 0.0 0.0 -3.6 .0 7.1546E-03 2.00001-02 2.00001+00 -4~999E-03I.443E,&06 0.0 0.0 -3.6 .0 J.430?'1-02 2.00001-02 2.0000E+00 I.SbOOE-021.5729E*07 0.0 0.0 -3.6 .1 2.6619E-02 2.00001-62 2.00001400 7.19:o9E-02
-3.145?7t.0? 0.0 0.0 -3.6 .3 5.7237E-02 2.00001-G2 2.00001400! 2.6799F-016.29151407 0.0 0.0 -3.b .2 4.098YBE-02 2.00001-02 2.0900E+00 2.1045E-Cl
-4-4$#3.L.04----- ---0. 0.0 -3.6 .1 2.9251E-42 2.60000-02 2.30000E.00 7.5219E-022.51661.08 0.0 0.0 -3.6 .1 2.92511-02 2.0000E-02? 2.00001.00 7.52191-625.0332&.D& 0.0 0.0 -3.6 .1 2.92311-02 2.G000E-52 2,9800E+00 7.,219E-02ENTR FREOS1.1989Z404 0.0 0.0 -3.6 .0 2.17j81-05 2.0039E-02 2.&0001400 4.1692F-082.5303E+04 0.0 0.0 -3.6 .0 4...039E-CS 2.C0001-02 2.0000F+00 1.8633E-07
.--6-343L4" . .-.Is d 0.0 -3.6 .0 9.73301-05 2.00001-G2 2.00001.10 8.3276E-C'1.1309E*05 0.0 0.0 -3.6 .0 2.0576E-04 2.00b01-02 2.00001400 J.7218E-AEI2.ýSV7E'05 0.0 0.0 -3.6 .0 -. 3 *.j9E-&4 2.6000E0.-2 2.COOOE.06 1.b6341-E-G5.0540E+05 0.0 0.0 -3.6 .0 9.1%~9E-04 2.0000E-62 2.00301.00 ?.4339E-01,1.0665E*38 0.0 0.0 -3.6 .0 1.9*4'1E-03 2.600001-G2 2.30000E.00 3.3224E-042.2588E+06 0.0 0.0 -3.6 .0 4.10ý19E-03 2.OOOCE-02 2.00031400 1.46-.9E-03-4..Z.Z.4.---.. - 4.0 -3.6 .0 d.6835E-43 2.400001-02 2.0000E+00 b.63io2E-031.00951.0 0.0 0.0 -3.6 .0 1.635ýE-02 2.C0001-i.2 2.30001400 2.96-ý9F-322.13..LE*0? 0.0 4.C -3.b .1 3.88311-02 2.OOCOE-02 Z..0000140, 1.3255E-C1'..5117E+07 0.0 0.0 -3.6 .4 6.b3111-02 2.30000-02 2.00001.00 .,.1022E-C1-9.5.fl01.07 0.0 0.0 -3.6 .1 3.2313E-02 ?.COuOE-02 2.0000E+00 9.176?E-C22.016kE*06 0.0 0.0 -3.6 .1 2.92211-02 2.0000E-62 2.0000E+00 7.5219E-02
-. 2611r04 --. 0.0 0.0 -3.0. .1 2.SZILE-02 2.40.00-02 2.06001400 7.5219E-028.0000E.00 0.0 3.0 -3.6 .1 2.92611-G2 2.60000E-02 2.0000E+00 7.1213E-02
FIGURE Z3SAMPLE ANTENNA-TO-WIPE COW~LING SUPPLEMENTAL OUTPUT
96
fpAQ"*c X~fRVxrcst3.00000E+01 1.15969E-08 2.664'99E-03
- - .44-917E*gi 2.43-iI1E-06 5.381444E-031.3407?E#02 5.11685E-08 i.0334?E-0?
5.99222E.O2 2.2248?E-01 1.8802LE-02
" W91.-a449'3 4.54353E-07 1.54.947E-022.67807E+03 9.38284.E-07 9.38089E-03
45 -. MIB69E44S 1.88697E-06 4.7771$E-03i.19689E.O4 3.710?OE-ob 2.30063E-03
2.53034E+44 7.06057E-Ob 1.09272E-03
5.34#919E.O04 1.28172E-05 59A735?E-04
L.lt3o&5E+O5 2.17L.28E-05 2.4477?3E-04.
2.39C6SE*O5 3.350O1E-05 ±.15t89E-o.
1.0664.5E+06 5.14950E-05 2.59083E-05
2.25677E+06 5.03241IE-05 1.22552E-05
4..77517E+06 5.24212E-05 :P.?97O3E-O6
1.4496CE407 8.1298LE-05 2.74.213E-062.13414E+07 i.64038E-0. i.297iOE-Ob- - .i.6402E-04 6.13557E-07
9..-796E+01 7.31071E-04 2.9OZ27E-01
3.04000E+01 1.15989E-08 2.66499E-03
6.00000E+01 2.30859E-08 i.11332E-03
1.26000aE+02 is.!;35?E-O8 9.45925E-C3
2.40000E+02 9.08321E-GO i.51353E-02
9.6000CE-02 3.!)1ý36E-O7 1.73134E-02
1.32000E+03 6.bui3'.E-07 i.2O972E-O2
3.81-OOOE+O3 1.31okE-Ob b.86203E-03
7.6800CEfO3 2.49322E-06 3.55677E-03
1.53600E+04 '..6169&E-06 i.79b42E-03
3J47Zuorr*O-4 a.28359E-06 9.0037iE-O..
1.4288DE4,05 2.29336E-Ot, 2.25264E-O.
2.45760E*O5 3.396O..E-O:, 1.i2636E-O'.4.9g1520E+09 ... '.819'.E-G:) 5.6318oE-029.830160E+05 !5.t2O'..E-O5 2o61593E-O5
* --l.9"6O8z+B6 5.08374E-O!ý i.o3791E-053.9321eE.06 ';-03389E-0:ý 7.03984E-06?.86432E#06 6.71021E-Ot 3.51992E-06
1.57286E+07 1.21722E-0. 175996E-063.L'.57SE*07 2..1 32OF.-C. 8':79980E-076.29146E+07 4.682414E-04. .. 399i90E-07
.1.25&29EG.ge 9.63966E-04 2.19995E-072.51653E+06 1.92129E-03 1.0999bE-Of
FIGURE 24SAMPLE WIRE-TO.WIRE COUPLING SUPPLEMENTAL OUTPUT
97
4.3 ERROR CONDITION CODES
IEMCAP performs extensive checks for errors at various stages ofexecution. When an error occurs, the program prints a message giving theerror code and a brief description of the error. In some cases, it printskey parameters to further define the error.
An error condition can be fatal or non-fatal. A fatal error causesexecution to terminate and generally results from an unreconcilablesituation such as a missing EXEC card or working file misalignment. Themajority of the error conditions, however, are non-fatal. The program
ignores the bad data or parameters and continues. Although continuing mayproduce incomplete results, it allows the program to check for additionalerrors.
The error messages described here are from program-detectable errors.They are conditions which the program logic is able to detect and aredifferent from computer-detectable errors. The latter are detected by the
system support software for the particular computer and are not controllableby IEMCAP. A memory overflow is an example of a computer-detectable errcr.
In some of the error messages, alpha ID's are printed in lEMCAP internalcode consisting of a 10 digit number. This is broken into five groups of 2digits each. (The number may be 9 digits in which the first group is onedigit with a suppressed leading zero.) The character associated with eachgroup is obtained from Table 9 to form the ID. For example, the code1801040118 is broken into groups 18-01-04-01-18 which, from Table 9, is RADAR.
4.3.1 IDIPR Errors
There are fifty-eight program detectable errors in IDIPR, of which onlythree are fatal: exceeding the maximum number of equipments, an EXEC cardout of order, or an ISF spectrum ID record not tiatcbing a port. The IDIPRerror codes are given in Table 10.
4.3.2 TART Errors
After the input data is processed by IDEPR, it is possible that thereare still errors in the input that could not be detected by IDIPR. A likelytype of error would be a specified component that does not exist, such as aport-associated antenna ID that cannot be matched in the antenna data. Sucheriors that can be detected by TART cause an error diagnostic to be printedout. The fatal errors are an invalid TART task control card, file alignmenterrors, invalid system type coee, or a zero fuselage radius for a spacecraft.If there were non-fatal ericxs during a TART run, a message is printed at theend giving the number of errors which occurred. The TART errors are givenin Table 11. The TART subroutine is given as an aid to tracing the cause ofthe error.
98
is'
• TABLE 9
IF11CAP ALPHA ID INTERNAL CODE
CODE CHARACTER CODE CHARACTER
00 blank 19 S
01 A 20 T
02 B 21 U
03 C 22 V
04 D 23W
05 E 24
06 F 25 Y
U- 7
07 G 26
08 H 27 1
09 1 28 2
1. 0 J29 3
11 K 30 4
12 L 31 5
13 M 32 6
14 N 33 7
15 0 34 8
16 P 35 9
17 Q 36 0
18 R
T99
040
0
0 P.
0 I-4
41 0
41 HH 0 C
0 -4 u >40 0oZ 0> )C. 4
u 4J4- U) 4 I,: x V
r. u- C:a)J 0 a 4J l
o-0 -A 0 41iQ) *- 0 0 a)
4-i 41- H. x 4-IU 0 w C0. 0. Q) 0. 0 $-o )i 44 '4 0 a
r. 04 44 0 H *v *-o~~c to V ~ i U> 0 C.)4i ±
V 4 m SI o -W 0. co u pHa0 :3 0 C.i 0- _H > o 1- L C
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Section 5
EXAMPLE TEST CASE
In this section, a use of IEMCAP is illustrated by a test case, calledthe "mini-system." This test case can also be used to verify the operationof IEMCAP on a particular computer by comparing the answers to those repro-duced herein. This data is designed to test the various routines and mathmodels in the program and is not necessarily relatable to a physical system.The engineering data is presented along with the resulting IEMCAP inputs andsample computer outputs.
5.1 MINI-SYSTEM DESCRIPTION
The test case system ("mini-system") is an aircraft with physicaldimensio-.s as shown L- Table 12. These parameters can be related to Figures3 and 4. T.he subsystems and equipments which compose the mini-system areshown in a basic schematic diagram in Figure 25. The eight equipments areshown along with their ports and port connections. Each equipment is desig-nated by a subsystem and equipment ID. For example, equipment 1 has equip-ment ID "UHFCO" and subsystem ID "CNI." Each equipment box location isgiven in terms of buttline, waterline, and fuselage station in that order.Also given is the compartment ID in which each box is located. (Compart-ments isolate boxes; that is, no coupling can occur between boxes in differ-ent compartments).
) Equipment case leakage is taken as the first port in each equipment.All otner ports are shown with their ID's for each equipment. For antenna-connected ports, the antenna ID is shovn along with the location coordinates.This antenna ID refers to the system-level parameters for the particularantenna type. Note that the same antenna may be deplcyed at severallccations on the aircraft. For wire-connected ports, the bundle and wireID's, port interconnections, shield terminations, and exposing aperturesare shown. Ports are indicated as sources, receptors, oi both by inwardarrows, outward arrows, or both, respectively.
Wire bundling and routing is shown in Figure 26. Each wire termination,branch, or direction change is represented by a point with an ID and locationcoordinates, as shown. Also. dielectric aperatures in the aircraft whichI expose bundle segments are shown with thEir locations.
With the basic syseem establirhed, the detaiied parameters of the portsare defined. As an example, the equipment case and first intentional port ofequipment "UHFCO" of subsystem "CNI" are discussed in detail. This equip-ment rppresents a UOF communications transceiver. The EMC specification usedas an initial for non-required spectra is MIL-STD-461A.
109
TABLE 12
MINI-SYSTL2M AIRCRAFT PARAMETERS
Conical Nose Limit Fuselage Station 165.0 inches
Fuselage Radius 56.5 inches
Core Radius 18.8 inches
Centroid Water line 2.,0 inches
Bottom Water line 12.0 inches
Bottom Option FLAT
Wing Root Coordinates
BuLt line 55.0 inches
Water line 12.0 inches
Forward Fuselage Station 225.0 inches
Aft Fuselage Station 456.0 inches
Wing Tip Coordinates
Butt line 230.0 inches
Water line 16.0 inches
Forward Fuselage Station 435.0 inches
Aft Fuselage Station 490.0 inches
110
7_ rip 77_
COMTA PODHREQT1- CMLO 2 (0.0,86) (81.5,-20,210) 2 IPFX EQPT 4
CNI/UHFCO IMGPDILOC - INPYL12l.5 .23,180) COMTA PODHR W~cC =
CMPT -ATFCP (01865 8.,2,)(8..5. -20.30'J)COMUP 3 (01865)(1.,-030 3 IPAX CMPT =STAB8
ADFIN 4 (0.0,129) (81.5, -20.270) 4IO
PWRSP 5 eNDL1 NEH +-5 EEDIN
PYCON 7 BNDL2
LOCATION 7 7OT POi-R(14..-230
PODCMEPT 5SA- -31515) TARF2 (08037)(134.5,-20,-300) 3 OBAX IGD
CMPT 2=O
CNIBY
PIJOfN) POWER 3 NDL1 (134.5,-20,340) 4OOB1W2
PODHR EQPT 6(o.20.90) 2 CLFX IMGPD/
CENTL_________ ______LOC =
TRSP PODHR (0,-10, 325)IEQPT 3 IFFRF 2 (0,80,224) (0,-20,350) 3 LA CMPT = STA 5CN I/IF F(5.7,175)
-CMPT - CNIBY PDOMNPOWFR 3 *(0, -20,310) IO
LT7 ALTMFECPT 7 4 . 12)EQPT 8=IRDALTI RFOUT 2 (420.12
RTUNITLOC =RTUN-I1 2 DISPIN (21.5,18.180)II
FIGURE 25MINI-SYSTEM BASIC SCHEMATIC DIAGRAM
GP~ O73. 105M
A -A~-~- 7
IIEQUIPMENT 3 (-5,90,400) (0, 80, 374 EQUIPMENT 2
CIMP/INPYNIT CA
(5,8 7175) (5.7,175)
TOPCP
(8.55.65, 1000."0
EQUIPMENT 4 EQUIPMENT 1IMGPD/INPYi- CNI/UHFCO
(81.5 -20,300) B22 (21.5. 23. 180)
f8(.55 -201,270)1 (0.,75, 115)
NSEV IH (5.90, 400)(0.,0, 86)
D2 (21.5. 18. 180)
(21.5, 18,.180)
FIGURE 26MINI-SYSTEM WIRE BUNDLE ROUTING DIAGRAM GPJ 1075
_> __Frequency Amplitude30 _=. 100 27.5
_ E 100K 27.5E 25M 526" 0 - - - - looM 25.0
10 100 1K 10K 100K 1M 10M 1OOM 1G
Frecquency - Hz
FIGURE 27
BROADBAND EQUIPMENT CASE EMISSION SPECTRUM FOR "UHFCO"
GP?3 1075 33
112
ANTENNA -COMTA
TYPE -DIPOLEPOLARIZATION -VERTICALLENGTH 0.2 INCHES
PORT 2 - COMLO
FILTEP - FLTR2r XFMR COUPLED STAGEF0 = 300 MHz SOURCE
2 =1 dB AM VOICEISOL-80 dB b-SKHz(0=200 em SSM =0.1
FIGURE 28DETAIL OF PORT "COMLO'
L-CHAN 6W50 KHz
100WATTS------- -- -- ---rPCLTUNED ~ I5d
MIL-STD-461A 2ndEOE ILEVEL -I '.HARARMONI
14 KHz CARRIER 18 GHz
~~4]RANGE225 MHz 399.9 MHz
FIGURE 29EMISSION SPECTRUM OF PORT "COMLO"
113
TiCal Tuned
Freqi.,encV Spect~um
MI L-STD-461A
Tp
CS04 Level Setu
50KHz
14KHz 18GHz
Carrier TuningRange
225MHz 399.9MHz
FIGURE 30SUSCEPTIBILITY SPECTRUM OF PORT "COMLO"
114
LJ
Since case leakage is not an intentional port, it has no required outputsor susceptibilities. For the particular port in question, the susceptibilityand narrowband emission spectra are the MIL-STD-461A limits. The broadbandemission spectrum, however, is user defined and is shown in Figure 27.
As an example of an intentional port, consider port "COMLO" connected tothe lower communications antenna. A schematic of this port is shown inFigure 28, and its spectra are shown in Figures 29 and 30. This port is aninput and output fo7 voice All signals whose carrier ranges from 225 to 399.9MHz. As showai in Figures 29 and 30, the total frequency range of interest is14 KHz to 18 GHz. The frequency range of the required outputs and responsesis 225 to 399-9 MHz. In this reouired range, IEMCAP will compute theemission spectra. Since this is a tunable port, the envelope formed bytuning the carrier over its range will be used. The second and third her-monics are 50 and 100 dB, respecti-ly, below the carrier as shown. All otherspurious outputs are limited to MIL.-STD-461A levels. The susceptibilitythreshold spectrum is similarly computed.
5.2 IEMCAP RUN FOR MINI-SYST24
With the system to be analyzed defined, the data is written in theIFICAP input format and punched into cards for use by the program. Thesecards are read, decýded, and listed by IDIPR. Any diagnostics generated areincluded in this listing.
The input card listing of the data described above is reproduced inFigure 31. (Note that some of the key words are abreviated by their firsttwo characters; e.g., "BU" for "BUNDLF"). The task specified on the EXECcard is for an EMC survey, and h'e job status is new (no old ISF). Thereare no diagnostics, so the program continues into initial processing.
After the spectra, the working files, and the new ISF are generated, areport of all data processed and spectra generated is pcinted. Sampleoutputs from the report for the mini-system run are reproduced in Figures 32through 36.
With the data successfully processed by IDIPR, the TART section ofIEM•AP is run. Samples from the TART output for a mini-system survey run arerepcoduced in Figures 37 through 39. The analysis output is given for thefirst two receptor ports in UHFCO, described in the previous section. Notethat no intrasystem EMI was found for the equipment case (Figure 38).The EMI summaries from the emitter ports coupled to COMLO are rcprodued inFigure 39.
115
INPUT CARDS
RE~AQ~z lt.FICCOT4M CORRECTE'J 4AqEL!tlE SYSTEMl. OEVISEn 9-14-73CONTRL EXC~CE R ,tEW,.SURVEY
SYTE4ARO aOOO
SYSTEM WNRT
ENVIRON- EFO= JE,0EqEf~r6j94~MENTAL 0E=30,3O,4G,40,3O,30
FIELD IE=-20q-20,!5 ,c~-2G,- 2 0
APERUREAPlE*=SFUN q,fI,),,3Frq,toWAPERURE APER=TOPCP,lG,'7.2,332.5,3i6,10,NOW
ANT=COMTA,'IPOLE`,VE,(.20)ANThCMAflF,Lcflp,H!,(.25)
ANTENNANAT=T0SP,0TPnLlEVE, (.0*
ANTENNANA4T::POOHqHORN,HZ,( .i0,'.5, 30,30,-5,r4Of-20)ANT=PD0tN,nlTPCLE,VE,(.clANT=AL.T tHO ii,N7, C. ,7.5, 25, C-iig,-30)FILTER=FLTPI,SG'rljN,I, C30C.E6, i.E3,-i,-10)FILTEQ:FLTR2vTRCOU",i,(300.E6,-,-iO,
2GOp.1)FI'!D=LR, TEo,(1.0 'Eq,.1F~5,-1,-80)
FILTERS FILTFtZFTD~s,LOWPAS-,4,(1.5rq,-1,-qo)FILTEP:FLTP5,HZPASI., (.q5Eý',9-1-8UJ)FItTER=FLTR6, 8PASC,6, f.qzýE6,4.05F6,-1,-A0)FILER~=FLTQ7,BRJCT,i0, (4.0 iES9d.L-6,-i,-A0)
WIRE WqRT3L=SoE22,tN, 1, 30viv6 i2.
WOTBL=SPCS2*',1H9i,0,19,P,.R 42, 8,6.6,463TABLE WRR=P'~nt9Ol6284-,)64i,,.
SUl85SV'=N1'EOPT=UHFCO,'446i, ADJUST, AFCTr', 4ONE,21.5,923 ,Ig0
('0N4MENT=UHF COMM'~si FREO=30,180E99,i,35
rP0PT~fASF9 0, 0EQUIPMENT SOURCE=CASE, 30,'411S ,SP(100.,2'.r,,iOO.E3,27.5925.E6,52.P,100.E6,
{ASE EDT=CASEq,102.6LPCMt)rCASE qAS,-24.qM6)~qT'F
ýPR='CLNT(OT j-,0O~it(W,50,O,0,0,0 ,FLTR2
PORT COMLO SOU~rE=RF, 30.,?25Efý,399.9E6,i00.,q0.E3,AM(VOICE,5.E3,1),(-5 G,-iOO)
RCF0T=P% 30*v425E6,3Qq.qE6,-100 ,9;0.E3,AHlV0ICE,5.E3,8) ,lE6
PO9TCOMUP,ANT,(VO4TA,0,O,0,138,625,NOW),50,O,C0,O, ,FLTRiSfOUtE=RF, 3Oi.,225L.ýF,399.qE6,100.,rO.E3,AN4(voIrE,9.E3,1) ,(-50,-100)
01,FPT=RF, 30,2E,3q96-0,5. 4i3CI.3C,i.E6
POQT=A0FTN,ANT, ((re4A'F 0,0,0,0,1~29,N0W),roq;G,cq0o a
RCEPT=PF, 30,2E99.FiO5.E,4VIE5E,)iE
SOUd E=POWER, 30, IiI,400, 2, 1,'461ARCEPT=PnEP, 30, i15,14&C2,I ,'4161A,
PO*=TOtTE(RO29W,2GCNNOE)5,,,t ,0
SO(JQLE=STGNAt, 3fl.,20.E3,g..EF~qRECT0L( Z0.E3,1.E-6)ti0,VLTS,4.E6P0DT=PYt0O4,H7QE.,(lNfL2,92W1?Ak2,GNO,GNOEX),50O*,0,,0,OO
SOURCE=SIGNAL,3O,2O.E3,5.E6,RECTPL (I.E3,.2E-3),10,VLTq-4.EE
rnMlhq4ENT=T AC ANEOPTt¶ACAt,N61f31O,ADJUST,CNIRY,N0T,-3ý15,1
7 5FRFQ 30 , 1. E9q,3FO'TBL=S00.E6,962.Efi, 125E6,1 t30.E6,17~13.E6,1250.E6,i380E6PORT: CASE,0,0
S0UQCE=CfiSE,30,ý'~TSPC,HIqIISPCRCEPT=CASE, 3Q,'4ILSPtC,'4IVFC
PO?=ARtTinT,0 09,7,tW.,,,0,O9 9FLTR3
Sf)URriE-RF, 3012.6i3F,5017E3ROP CP94,.E6,t-60,-80)
FIGURE 31DATA INPUT FOR MINI-SYSTEM
116
) ~RcEP'=RF,3Q,962E6,i213E6,-lCo,50oE3,RaA1AR(RErPL,30,2.SE-6),10oE6
SOI)RrE= POWEP,3Q.,ll-,:O,OQ,,3,%46jAIRCEOT= 0OWEI~,3O4Il5o4-.j09,3,%461A
EOP1=IFF,"461,At2JUSTdt4I~1rNOT,5,7, 17';
FOVU9L=103d .E6. 1Oq0F6
SflUPCE=CAS~,30,'4IL,HTILRCEvT~rASEv3O,'"IL,mTLpflv~~qFANT,(TQSD,0,0,0,863,224,NtOW),50,09,O,0, -59RLSOIJPCE=RF,30,joqCE6,jO9OE6,100O,5E6,RAoAR,(TPZo,2200,ý45E-s
tIE-69.lE-6)q(--60,-9'0)RPP=F3,OO ,0.6-076RAA(PD20,45E--6,.IE-6,
PflQT=Donwp,WIvE, (1Nt~t1R1W2,CI1,GNB,NONE,NOTEX),1.59 O0,O,0, ,0sflUq(E=P')WEfR,30,t1r,400,3,3,M461AgrEPT= POWFQq3Oqt1'%40O0q,3,'m461A
COMMHENTIN-POBAfl PYLO)NErjT=!NPYL, H4fi.A,8UJUST,STA8,NO4 , I .S,-20,!0OFRQfQ=30q1).Eq,1q35FQ0r3tliE6,4E6,5Fr30nRT='!ASfDpo
S0UI*CE~vASE,3O,'N!LsPr, ?41SFrOCEPT= rASE,30,"TLsPr,?;!t-FC
POQ1'=IPFY9 ANT, Dn~iR,100 aff'.5,-20,210,ftf)T),73,0,0,0,O,FLrRc;
POTTA~N,-nH,0, ,115-030RT,73ý,G,0,0,0,FLTR5
PnRT=TP(10,aNT,trntlN,G,0,RI.5,-2O,2'0,nnT) ,100,0,O,0,O 1
t 0)OT=EFrnTN,WTOrtnnt2,R2W1,PQ29,zNo,rA-,EX1,1,f,0,0,0,Ot0C0=~q0ll(Ci0 I.Eic, 1,0)
PCFOT ITGNAL ,30 lE 3,5.F 3PECTQL (20 .E3.1.E-6) ,IC,VL *,.c
orrPM pnEP0lWI,30C,115 ,454, 2, 1,m!4611&
rOt4EN,=nMJTaQ8aRf pyt.O)
FflTBL~1I6, 4E6,5Ec-
SOU'.frE~rtSF,30 ,"TLSPC ,MtILlFCof-EP~T=ASE, 30,14TL,;pr, mIts ý
'0ODT8OIY, RNT, (Pnf%4, CC,1,10134.-,20,37C,9-Tl 7 5,,0,0 , 0,FLTR6
f'OMMFT~rENlFc LTNr' SyhTIO'EOTP"L41lg~~~TSA,#1 3,-20,32r~
FO"~L zlE~q4EF~5rc
FIGURE 31 (Continued)DATA INPUT FOR MINI-SYSTEM
117
RCEPT= CASE.,30,rTLSPC, MTLlzfC 9LPflRT=CLFX9ANT, (onnfH'R,10090909-202107,NOW) ,t7390O,, ,0L09 0SOU'VE=RF,3O~iEA,4FE6qi5OOO 3E6,SPECT(-.5EE6,-ie.2,O.,71.o,
D(OT=CLX, ATq(D 'Pf~HPICO q8C 90 920 350, NOW),973,OOOO9FLTIR7
PORT=TP09 AN'rt (Pqnmml,c 90 ogO-2O,31 0 NOW) 9100 0,o 90 0 9
,ýLISYS=R AL T
F*EQ=3Cj8Eqqj,35FIflBL =Is 200E6 9430OF 6944GO FpnR, - rASE , 0 9
s r),IRC F=C A'ýf 3 5 MT , M TLRf'E Or~frASE13 09 ,'L 9MTIL
PORT =PF UT 9A NT 9(A L TMVO,919 094 2,a, 2 12 9N 0 4) q 9 9c,10,c 9
* OIC-6) 9CSUqSvyzznI ~
EOPT=V0T',0m461, ADJtJST, AF~rt),N ? 1. 9 191t
DPORT=rA!:E ,O , gSntjprF'AsE,30, ML,mIL,RPEFPT=P SE, 30,MT11,'MTL
PORT= TzPTN, WIPE, (9NrL2,122 02,GWGNfDG~ EX) 9 o, C, 9, 09 a, 0 L
QCEP'r=IGNAL,30,tIE3,%5E%).'FCTPL(20.E3,1.E-6),1j0,Vt T l~4.E6
WT*E=P1W2,';rr'.2oi,ri.8tJNDL E= QNDLBPTS=A2,0,7?5,li5,R2,-5l.3,-202'0,r-2,~,qO,4uC,)2921.5d-,1830
98qEG=A2,C2,iiO.2,4,rcimp1,tJSEWH,B29-29191.0149COMO90~,O')2,C2,220,4,Cfl9n1,0WIRE= 82W1,ql0C~k7 A29f2 9 3WTRFP2W2,,Svc2,pR2J"2 ,ý?, 2
Enq)AT A
FIGURE 31 (Continued)INPUT FOR MINI-SYSTEM
118
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F P F U E N rY T A E
T F ROT RL I IFROT9Lt T rQT;3L£ .3000Et02 12 o6144F+05 23 .l2=eE+092 *60i30Ft02 13 o 12291E+06 24 .25 IfE+093 ot203EI03 14 o245IE.O06 2r, .:033E4+094 .2400E+03 15 o4qi5E1 06 7- 4 tV7E+105 :4800OE+03 16r o(9830E:+ 6 2-' .2(;3F4106 oq6DOE*03 17 *1Q6f3F+07 28 ,4f-2?F~t17 s1920E+04 18 *3932E407 29 *8053Eft0a o3840E*04 19 e786I.E+07 30 i16llE1ii9 076ROEtO4 20 *1573E~n) 31 *3221E+il
10 *1536E.05 21 34-E11 *3072E'09 22 .2l+1
EMTR FPE() lNr)EY TARLEISR OPT T YPE IFMIN rmqTV' IFflAX FMAYI RFq *'686E+0'. 31 .3221E+11
2 1ZG .3000E+02 22 .6291F408
4 CTRL 1. .3000EtO2 22 5 .2,91 E+ 0 R9; JF(3 I *3003E402 1 *3000F+02f; CASE I *300CE402 30 .1611E+11
QtVrT FREO TNtVEX TAqLEISR PRT TYPE IFM!N Ft4IN IFMAX FAjI RF 3 .7FA80E+04 31 321±1
2 V I .30C0E402 25 .3033F+093 Syr, I .30D0E+02 30 .1fV1F*I14 1l RLI 3000E'02 30 Ift~1ElI1
c E'ED I *3000E+02 30 .Ifi~iE t I
5 C ASE 1 .300GE402 30 * if itF + I
FIGURE 34FREQUENCY TABLE
IDIPR OUTPUT FOR MINI-SYSTEM
124
* ,+.... ...__
NEW TSF FILE
I N I T I A L P 0ORT S P CT CYPa
SUBS P eT EOPT I UMFCO COOT I = CASE
tFVO FREQUEN~rV 4 #....... EqT~ ........ --- RElEPETnR---*
NR PECT #18 LIMIT 95 SPECT 08 LIMIT SPEC'r L4TtTI .311SEW0 -1010.0 -1830.0 -1000.0 -1030.1 1048.4 1219.02 .G1OK4E02 -1401.0 -1030.0 -1000.0 -1030.0 t0C0.0 1010.03 .1200E*03 -1010.0 -1030.0 Z?.5 -2.r 1600.0 1018.0i • 28baft03 -1000.0 -1030.0 2F.5 -Z*S 1a00.0 1011.05 .46diE*03 -1100.0 -1030.0 2?.S -2.5 t000.0 i010.0
6 WBOEI-03 -1400.0 -1030.0 27.5 -2.5 1000.0 1010.07 .1920E#06 *lieO.0 -1033.0 27.5 -2.5 1300.0 1810.0a .MSkE*04 -1010.0 -1030.0 2r.5 -2.5 tOOO.0 1010.04 .7681E004 -1000.0 -1030.0 2F.5 -2.5 1000.0 1010.0
10 .1536E+Os 30;.0 r, . 27.5 -2.55 140.1 154.011 .3072roos 34.0 4.0 27.5 -2.5 140.0 Itqe.O
12 .6144EOJS 32.f 2.b 2F.6 -2.rl 140.0 150.0t3 .1229F*06 31.2 1.2 30.3 .3 10,0: 1134.014 .24$SE*O6 29.Ft -.2 33.4 3.4 140.0 150.0I's .##95E+06 24.4 -1.6 35.6 6.9 i•0.0 lr, .O0If, ,9R30E4,06 27,1 -2.9 39.? 9.7 140.3 156.017 .19bGE+07 2r,.? -4.3 42.9 12.9 140.3 190.10
18 .3932E+07 24.3 -5.7 4$.0 26.0 1f*0.0 150.0to .78614E447 22.9 -1.1 49.2 19.2 140-0 150.020 .16;?X4FOS 21.5 -q.5 r?.3 Z2.3 140.0 tqlO.O
21 .3146iE+08 24.2 -5.6 15Z.6 Z2.6 134.0 144.0O
22 .62QIE#06 28.0 -1.1 40.0 10.0 134.0 144.023 .1205E•*o9 33.5 3.5 25.2 -3.93 134.3 14,@.0
24 .2517i?.09 36.1 9.1 11.3 -I18.7 134.0 L44.0
25 .S833E*09 42.6 12.8 -3I.6 -33.6 134.0 144.0
26 ,1 0 ?E+1O 47.4 17.16 -11.5 -48.5 134.0 144.027 .2813E*10 52.0 22.0 -I00C.0 -1030.0 134.0 14.4.026 .4027E+ 10 56.6 26.6 -L006.0 -1030.0 134.0 144.0
29 .6O•31F*1O 60.0 30.0 -t000.0 -1030.0 134.0 144.0S30 .1611E+11 -1000.0 -1030.0 -1000.0 -1030.0 146.0 156.0
NEW TSF FILE
W I I A L P 0 0 1 S 0 E C T P
SUBS r NI FOPT I -- llHFC0 PnOT 2 ý COMj.O
IFQQ FREOUE•rY 0 ----------------- EMITTEQ ------------------- • --- RErEPTOD ---
Nq So~rT Nck LIMIT go SpErT aq LIMIT SpFcT L141T
9 7?66+04•O 43.0 13 .0 -10 00.0 _-1e30.0 103.0 133.0is :1536E+05 43.0 13.0 -1000.0 -1030.0 103.0 133.0
11 .$072Ft0S 43.0 13.0 -1000.0 -1C36.0 t03.0 133.012 b6l44F+05 43.0 Mc, -1000,10 -1030.0 103.0 131.013 .1229E*06 43.G 03.0 -1000.0 -1030.0 103.0 133.0L4 .2456E*06 43.6 13.0 -t008.0 -1030.0 103.0 133.0IS .491SE*O6 43.0 13.0 -1000.0 -103A.0 103.0 133.016 .9830E4,06 f63. 0 0.0 -1000.0 1•3. . 03.0 133.01T .L966E+07 43.0 13.0 -1000.0 -1030.0 103.0 133.0I* .3932E*07 43.0 13.0 -c000.c -1030.0 103.0 133.019 0756#4E•07 43.0 13,0 -100G.0 -1010.0 103.9 133.0
20 .15?3f+0$ 43.G 13.0 -100610 -1030.n 103.0 133.021 .3146E÷Oe 43.0 13.0 -1003.0 -103C.G 103.0 133.022 .629IE*G~l 43.0 03.0 -1000.0 -1030.0 103.0 133.0
23 .125$Eiý09 43.0 13.0 -1c00.0 -1030.0 103 ;b 133.024 .2Si?F*09 123.0 93.O 143.5 i•s.5 -27.0 3.025 .5033F*Oq 1?3.0 93.0 145.5 t1R.q -27.0 3.026 .1107E+10 73.0 43.0 96.5 6Ac 103.0 133.027 .2013fo10 43.0 13. (1 -1000.0 -1030.0 103.c 133. G
S?A .Os 27E~l 0 03.0 13.0 -1000.0 -1030.0 1C3.0 133.0
29 .8 of;3f+10 43.0 1s.0 -,cO00. 0 -1030.0 103.0 133.0so0 .15,11[•11 43.0 03.0 -l00U.0O -1630.0 103.0 133.0
S31 .3221E•11 10.0 13.0 -tOOc.9 -1030.0 103.0 133.0
i FIGURE 35
S~INITIAL PORT SPECTRAS~IDIPR OUTPUT FOR MINI-SYSTEM
1125
-1 °'° ......... l
NEW ISF FILE
SI N IT I AL p 0 R T S P E r T R• A
SSIMS 8 f"I EaPST 1 =Us4FrO Pf)T 3 z coMUP
IFRO PREOUIENry ----------------. EMITTED ------------------- • --- RECFPTnv---tN% SPEC? NO LIMIT Re PECT 1 LT441T SPECT LITIT
4 .?E*of*04 43.0 13.0 -1000.0 -1030.0 103.0 133.010 .1O6E405 43.0 13.0 -1003.0 -1030.0 103,0 133.0
11 .30?2E*05 43.0 11.0 -1000.0 -1030.0 103.0 133.012 .6144[8As 43.0 11.0 -1000.0 -1030.0 103.0 133.013 .1229E06 43.0 13.0 -1000.0 -1030.0 103.0 133.014 .245S6E06 43.0 13.0 -1000.0 -1030.0 103.0 133.015 .4',q1E*06 43.E 13.0 -10O.0 -1030.0 103.0 133.0if) .930F*06 43.0 13.0 -1000.0 -1030.0 103.0 133.017 .1466r+07 13.0 13.0 -to00.0 -1030.0 103.0 133.016 .39l2VF0' 43.0 13.0 -100.0M -1OZO.0 103.0 133.01I .'8fE4,4E 43.0 13.0 -1000.0 -1030.0 103.0 133.020 ,15?3E*OP 63.0 13.0 -1c00.0 -1C30.0 l01.0 133.G2t .3146F+a6 k3.0 11.0 -1000.0 -1030.0 103.1 131.022 .62qlE*OA 43.& 13.0 -1000.0 -1030.0 103.3 133.02! ,12QGE*04 43.C 11.0 -1000.0 -1030.0 103.0 t33.024 .251E*09 123.0 93.0 10.5 118.5 -21.0 3.025 .SU3IE.oQ 123.0 q3.0 1'S.5 lts.• -27.0 3.02f, .*1907E*O 73.C 43.0 98.5 60.5 103.0 133.02? ,2013E'10 43.C 13.0 -1C00.0 -1030.0 103.0 133.028 .402?Eq10 43.C 13.0 -1OOC.0 -1030.0 103.0 '33.024 .8053F+10 43.0 11.0 -1000.0 -1030.0 103.0 133.%d% t•611Ef11 43.0 13.0 -1o00.0 -1030.0 1E.3.0 133.0
31 .3221F11 43.C 13.0 -1000.0 -1030.0 3.0,O 133.0
NEW ISF FItL
I I T I AL PORT S PE C T RA
SURS CN Ek G OtT I = UMFCO PORT 4 z AnFiN
wa qPECT NO LIMIT q8 SPECT aq LIMIT SPECT LIMIT
9 .761kE•o' 0.0 0.0 0.0 0.0 103.0 133.010 .?536F+C5 0.0 0.0 0.. . 0 103.0 133.01t8 .3072E*0 0.¢ 3.0 0.0 0.0 103.0 133.012 ,6144E*O5 0.0 0.0 0.0 103.0 133.013 .1229E*06 0.0 0.0 0.0 0.0 103.0 133.021 .°4SSE(06 0.0 0.0 0.0 0.0 103.0 133.022 .491.SE06 0.0 0.0 0.0 0.0 103.0 133.023 .2350.E06 0.0 0.0 0.0 0.0 103.0 133.017 .19F6E'07 0.0 0.0 0.0 0.0 103.0 133.02I .3*532E30Q 0.0 0.0 0.0 0.0 103.0 133.019 .0•64E*07 0.0 0.0 0.0 0.0 103.0 133.020 .*573F9,0 0.0 0.0 0.0 0.0 103.0 133.021 .3146E&08 10. 0.0 3.0 0.0 103.0 133.022 .6291F*s0 0.0 0.0 0.0 0.0 103.0 t33.023 ,1ZSGE*Dq 0.0 0.0 0.0 0.0 103.0 133.0
•+.24 ,lPt o•C 0.0 0.0 0.0 -27.0 3.025 .5133E*OQ 0.0 3.0 0.0 0.0 -. 3.0
:•26 ,l40?E*iG 0.0 0.0 9.0 0.0 103.0 133.0
27 ,2113F110 0.0 3.0 0.0 0.1 103.0 133.0S26 .4027E*10 Oc 0.0 3.0 0.0 103.3 133.0S29 .80r37#10 0.0 3.O 0.0 0.0 103.3 131.0S30 .1611ro11 0.0 0.0 3.6 0.0 103.0 133.0
31 .3221tE11 0.0 0.0 0.0 0.0 103.3 133.0
FIGURE 35 (Continued)INITIAL PORT SPECTRA
IDIPR OUTPUT FOR MINI-SYSTEM
126
0-~~
Mrw !Sf FILE
IN ? A L P OR T S PEC T RA
SUBS "I EQPT I UcO PORT S a PWmRSP
TFRO FREOUENCY ----------------- EITTEP --.- --- RECEPTOQ---.MR SPECT Ns LIMIT q1 SPECT as LIMIT SPECT tLf(T1 .306lE#02 131.0 143.6 132.0 102.8 13S.Fi 1,;S.i .6008E#92 136.0 140.0 132.6 102.0 135.6 16S.6
3 .talEt*03 130.0 100.0 132.0 102.0 135.6 165.64 .2411E*83 130.0 1I0.0 132.0 102.I 135.6 1615.65 .468t1+03 131.0 100.0 42•.0 162.8 135S. 165.646 .96OIE*03 131.0 100.0 IVA. 102.0 135.4 165.4
• .qkzsEfok L39.0 100.0 132.0 102.0 13%4. 16o4.1
G .364E+84 122.1 92.1 132.0 112.0 133.' 163.49 70,68E084 1i7.0 ?*.0 132.6 102.2 132.r 162.1;to .3036E0QS 92.0 10.0 132.0 102.0 131.0 0f1.0
it .3172[*0S ?8.2 41,2 IZ9.5 90.5 13q.5 160.512 ,618%Eq•0s 69.1 39.1 11F,1 87.1 129.6 15q,6
12 .$229E#06 13.0 100.0 13.0 140. 028.0 0.S14 .2400Ew 6 51.1 210. 12.0 62.0 0V.0 057.0I1 .4*1SE*03 4S.0 12.0 80.1 10.1 0?7.2 0•.0
16 q$39E*+: 33.0 3.0 61.6 37.1 1270. 057.21? .19fEE04p 24.0 -1.0 2.0 2c.4 120.2 157.216 *3932E07 20.0 -10. 13.O 1020 0.012 05.2It .764E*O7 20.0 -10.0 51320.102 127.0 0.210 .1507f*05 20.0 -10.0 90.0 20.0 0.0 W.221 *314G2t.O 21.0 -10.0 02.0 2.• 027.2 110.212 .6291E*08 20.0 -12.1a 50.0 2.0 127.? 117.2
23 *12,6E*0q 0.0 0.0 0.0 0.3 120.0 0S7.224 Zslfoo0q 0.0 0.0 0.0 0.0 027.2 lS0.020 SS33F*09 0.0 0.0 0.0 020 .0?.2 157.2
NEW F U 3 F(LE
I RT IA P INI CTIA POR SPCR
sull' a CNI COPt 1 2 U14FCO PORT 6 =alv9nT
Il:R0 FREOUEN Y -- -- ....... ....... E41TTER .................-- f --- PE~ Po n .-.-*
me srel No LMIT 9P SPECT FO LIMIT SPEMT LI-ST1 .3000E,02 130,• l 100.0 13?*G 102.0 0.0 0.22 .6000E+02 130.0 180.0 13?.0 102.0 0.0 0.03 ,100OE*03 130.0 102.0 132.0 102.0 0.0 0.04 .2404E*03 is0.0 100.0 132.0 102.0 0.0 0.0S .4800F40) 13D.0 100.0 132.0 10Z.0 0.0 0.0S•9605E*05 130.6 100.0 132.0 102.0 0.0 0.0
• .1920Fl.04 134.9 100.0 132.0 102.0 0.3 0.08 3$4rf*04 11?2.1 9?,1 132.q 102.0 0.0 0.0
9 ,?6*scvof* 107.0 17.0 13?.0 102.0 0.0 0.010 .IS86E+05 -1034.0 -1064.0 92.0 62.0 0.0 1.0It .3'j72V+09 -1034.0 -1064.0 q2.0 62.0 0.0 3.0t 2 .6144k*0• -1034.0 -1064.0 q2.c 6?.0 0.0 3.013 L12aQE+06 -1034-.A -1064.0 9?.0 62.3 0.0 0.014 .20W.06 -10316.0 -10fil.O °+*0 62.0 0.0 0.0Is ,0691SFfcsý -1034.0 -1064.0 90. A O. 0.9 0.0is .:1530E+36 -1034.0 -1064.0 014.?7. G.0 9.017 .I966E*OT -1034.0 -106-.0 70.7 •q?0.0 3.0la .3932EW? -1034.0 -10'%40 '2.7 42.7 0.0 0.0tq .?Rs4F+0". 20.0 -10.0 c0.0 20.0 0.3 0.025 ISTSE*05 20.0 -10.5 j$.o 20.0 ti.b c.c21 °314.fE*04 20.0 -1c.0 50.0 20.0 0.0 0.022 .6291E+06 20.0 -10.0 50.0 20.0 0.0 0.0
S~FIGURE 35 (Continued)S~INITIAL PORT SPECTRA
•: . IDIPR OUTPUT FOR MINI-SYSTEM
• 127
NEW ISF FILE
I T I AL PO T SPEC TRa
StU, CNt WI PT Ix UNFCO FOQT 7 PYCON
IrvO FREWJENCT --- ...........- E94TTER.. . .... *---RECEPTOP---*Nq SPECT NO LINIT 9S SPECT 6q LINIT 59CcT LIIIT
I .314Ki02 130.0 109.0 132.0 102.0 ::.C 11.0S2 .631ASE#2 11.0 100.0 13'.0 106.0 86.0 116.03 .1Z1Et03 130.0 110.0 132.0 102.0 86.0 116.0& *2488E*US 133.0 100.0 132.0 102.0 R6.0 116.05 .4001f*83 130.0 100.0 132.0 102.0 66.0 116.06 *9100E*03 130.0 100.0 132.0 102.0 66.0 116.07 *lqzsi*24 130.0 100.0 132.0 102.0 86.0 116.0S .3602*06 122.1 92.1 132.6 102.0 66.0 116.09 .?TlfAKvk 117.0 77.0 132A0 102.0 86.0 116.01t .1536foo% -1034.0 -t064.0 107.9 77.9 86.0 116.011 .317I2E*0 -1036.0 -1064.0 101.t 71.8 66.0 116.012 *61804E*S -1034.0 -1064.0 45.6 65.8 66.0 116.013 .1229E*06 -1034.0 -1064.0 8946 59.8 66.0 116.014 .2465400% -1036.0 -1064.0 63.8 63.8 66.0 116.015 .4*15E.06 -1334.0 -1064.0 ??.a 47.9 86.0 116.016 .SS30E406 -1034.0 -1064.0 71.? 41.? A6.0 116.017 .1966E*0? -1034.0 -10614.0 63.? 35.? 86.0 116.01o .3932E*0? -1034.6 -1064.0 cy.? 2q.? @6.0 116.0Iq .7?64E#07 20.0 -10.0 50.0 20.0 103.0 133.020 1%73E*0f 20.0 -10.0 90.0 20.0 103.0 133.021 .3146E406 20.0 -10.0 50.C 20.0 103.0 133.022 .6291E*0 20.0 -10.0 s0.0 20.0 103.0 133.023 .12502.09 0.0 0.0 0.0 0.0 103.0 133.024 .2%3?E*0 0.0 0.0 0.0 0.( 103.0 133.0
26 .1017f#10 0.0 0.0 0.0 0.0 103.0 133.02? .20130710 0.0 0.0 0.0 0.0 103.0 133.026 .462711 10 0.0 0.0 3.c 0.0 103.0 133.029 *4057E610 0.0 0.0 0.0 0.0 103.0 133.030 tl6lIEell 0.0 0.0 0.0 0.0 103.0 133.0
FIGURE 35 (Continued)INITIAL PORT SPECTRA
IDIPR OUTPUT FOR MINI-SYSTEM
128
NEW TSF FILEBUNKLE
z IOlqNDLl
NOEPOTNTSS
Al. 5.0 69; s 100.0Ri0.0 ýDoo 370.4.
-5.00 Q0 00 400.0
BUNDLE SEGHENTSIOOINT I POINT 2 CNIPT ADOETURE LENGTH4 4IGHT
at 81 'rOMpi Toprp 270.9 4.0at ct COMPI 32.041
KIRESS
TO W~.T TYPE POINTS1
aiwl S~r22 Atllr
BiW2 SPVrS2 91 1
FIGURE 36WIRE BUNDLE DATAI ~IDIPR OUTPUT FOR MINI-SYSTEM
129
wU
0. Ca- re
.4 0-4l)
CLLk n u*
Lfl .4A a-oCL
-1 In
('0 y-
-J9
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Section 6
PROGRAM OPEPATION
This section discusses the operation of IEMCAP including initial stagesof implementation, maintaining the program, termination and restart, andFORTRAN source updating.
6.1 PROGRAM IMPLEMENTATION
P-ocedures for operating the two sections of IEMCAP are given below.As t-dere will be different methods of operation at different installations,the step-by-step procedure outlined below describes one method of operationon a CDC 6600 with suggested alternatives.
6.1.1 Storing the Source Program
IEMCAP is comprised of approximately 16,000 FORTRAN source statements,9000 for IDIPR and 7000 for TART. Hence, the source program is usuallystored on a disk file to avoid having to submit five boxes of cards eachtime the program is run. The details of doing this will vary with differentcomputers and with different installations. The implementation used on theCDC 6600 was to store each section of the program on a disk file using MODIFY,a source file library editing program that maintains and updates a aystem ofprograms in any source language. If the user is not familar with the methodused at his installation he should check with his computer systems personnel.It is not absolutely necessary to store the source program, but merely aconvenience, especially if any updating of the FORTRAN source is required.
An alternative to storing the source program is to store only the com-piled binary out, as discussed below.
6.1.2 Compiling the Program and Storing the Binary Output
4 IDIPR and TART are compiled using a FORTRAN compiler. The binaryrelocatable output for IDIPR and TART is saved, and this binary file isloaded and executed. On the CDC 6600, the output of the compiler is a filecalled "LCO." It is saved after compilation, and all future runs are made byloading and executing this file. If changes are made to the source, it must
be recompiled. On CDC 6600, the MODIFY program is invoked to transfer tht
source file from the program library to a file called "COMPILE" which is inputto the compiler. A binary file is created by the compiler using the controlstatement RUN23 to invoke the CDC FORTRAN compiler, Version 2.3 or by FTNto invoke the FORTRAN exteuided compiler, Version 3.
6.1.3 Executing the Progxam
Once the source file has been compiled the binary file is loaded andexecuted for each run. The control statement to execute the program varieswith the computer. On the CDC 6600, a binary relocatable file can be loadedand executed by the job control statement, LGO.
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APPENDIX A
COMPUTED GENERATED SPECIFICATION TEST METHODS
A.i PURPOSE AND SCOPE
The following test methods are recommended as those which will allow theprogram user to correlate measured data on equipment with the specificationlimits generated by the Specification Generation Routine (SGR). The measureddata will also be fed back into the program for more detailed system com-patibility analysis.
The recommendations include a system test method and subsystem/equipmenttest methods. The system test method includes equipment interaction testsand a limited number of critical line tests. The subsystem/equipment testmethods include conducted emission on each interconnect wire, conductedsusceptibility on each wire, radiated emission from equipment cases, andradiated susceptibility of equipment caoes.
A.2 SYSTEM TEST METHODS
The test methods specified in MIL-E-6051 are recommended for use assystem test requirements. The system tests will consist of equipment inter-actions and critical line measurements. The definition of critical lineswill be established by the user and may include any safety mirgins the userchooses to select. The test criteria, including definition of criticallines and test levels, will be obtained from the results of the systemcomputerized analysis and subsystem/equipment tests. Standard voltage andcurrent measurement techniques can be tailored to the specific line to bemeasured.
These tests are concerned with only intrasystem compatibility thereforeno system emission tests are to be performed. The intrasystem environmentis defined by the computer program analysis and the subsystem test data,thereby eliminating the need to measure the system envirornment parametersduring the system tests. The system tests will include only those cases
* where the analyses indicate questionable operational margins.
A.3 SUBSYSTEM/EQUIPMENT TEST METHODS
A.3.1 TEST LIMIT GENERATION
The test limits for subsystem/equipment testing are based on allowableextraneous emissions from equipment interconnect wiring and cases, andsusceptibility of the wiring and cases to levels equal tc the effects ofthese emissions. The interconnect wiring consists of all types of wiring
including power wiring, signal wiring between equipments, and coax cablesbetween RF equipment and their associated antennas. The computer programwill generate an emission and susceptibility limit for each emitter and/orreceptor depending on circuit characteristics. The limits are set for each
156
L
.. .. • .. .. 4 . . . .. . • • . . . , . . . .
.4.
The user should decide before submitting the run what files he wishes to saveupon abnormal termination and supply the proper control cards. In all caces,for IDIPR OLD or MODIFY runs or any TART run, care should be exercised tosave the input files so they can be re-used once the nature of the abnormaltermination is determined. On the CDC 6600, a special control card, EXIT,-. lowp the user to specify the disposition of all files upon an abnormalter~ination; hence, all old files and any new files to be created duringth,, run can be saved.
Restarting a program after an abnormal termination will depend uponseveral factors. Hence, the user must determine the nature of the terminationand decide whic. of the below solutions is most expeditious and cost effec-tive for his case. The three suggested restarts are given below:
1. Re-submit with no change. This is done if the factors are asfollows:
a. The cause of the termination was outside the user's realm,such as the computer "going down."
b. Little execution was done prior to terminatiop.
c. No new data sets were saved.
d. Even though partial new data sets were saved, the total jobtime is small enough to make resubmitting more efficient thansetting up a new data set structure to use the partiallycreated data sets.
2. Make data correction and re-submit with same data set up. If thenature of the termination is determined to have been caused by baddata but the factors descriling the case are essentially asdescribed in (1), the data should be corrected and the job resub-
mitted.
3. Make new data file set up definition and re-submit. The user maywish to use the partial output of the abnormally terminated run in
the following cases:
a. The execution time has been considerable.
b. Partially created data sets have been saved.
c. A re-start is available as either a MODIFY run to change thedata on the ISF or an OLD run using the ISF unchanged, as dis-cussed in Sections 3.1.2 and 3.3. As an example, assume thatduring an IDIPR NEW run, 40 equipments with a total of 250 portshad initial spectra successfully generated, but on the forty-first and last equipment, an abnormal termination occurred. Ifthe ISF was saved by means of an abnormal termination command,
154
the ISF could be used as input to a MODIFY run with cards usedto correct the error in the forty-first equipment data. However,the work files are not useable on an abnormal termination, andthese must be regenerated on the MODIFY run for all the equip-ments.
6.4 SOURCE FILE UPDATING
If a change in the source file is required or perhaps an entire routineis being replaced, the following steps are required:
1. Recreate the source file. This can be done most expeditiouslythrough a file editing routine such as CDC 6600 MODIFY. However,the changes could be made to the original card deck and proceduresfor initiating the program followed.
2. tumpile only the changes routines and update the binary deck. Thesource decks which have been changed would be compiled and a binaryfile management routine (such as the CDC 6600 LIBEDIT) used toreplace the changed routines in the binary files. An alternativeto this is to recompile all routines and save a new binary file.
1
S ! 155
APPENDIX A
COMPUTED GENERATED SPECIFICATION TEST METHODS
A.i PURPOSE AND SCOPE
The following test methods are recommended as those which will allow theprogram user to correlate measured data on equipment with the specificationlimits generated by the Specification Generation Routine (SGR). The measureddata will also be fed back into the program for more detailed system com-patibility analysis.
The recommendations include a system test method and subsystem/equipmenttest methods. The system test method includes equipment interaction testsand a limited number of critical line tests. The subsystem/equipment testmethods include conducted emission on each interconnect wire. conductedsusceptibility on each wire, radiated emission from equipment cases, andradiated susceptibility of equipment cajes.
A.2 SYSTEM TEST METHODS
The test methods specified in MIL-E-6051 are recommended for use assystem test requirements. The system tests will consist of equipment inter-actions and critical line measurements. The definition of critical lineswill be established by the user and may include any safety mirgins the userchooses to select. The test criteria, including definition of criticallines and test levels, will be obtained from the results of the systemcomputerized analysis and subsystem/equipment tests. Standard voltage andcurrent measurement techniques can be tailored to the specific line to bemeasured.
These tests are concerned with only intrasystem compatibility thereforeno system emission tests are to be performed. The intrasystem environmentis defined by the computer program analysis and the subsystem test data,thereby eliminating the need to measure the system environment parametersduring the system tests. The system tests will include only those caseswhere the analyses indicate questionable operational margins.
A.3 SUBSYSTEM/EQUIPMENT TEST METHODS
A.3.1 TEST LIMIT GENERATION
The test limits for subsystem/equipment testing are based on allowableextraneous emissions from equipment interconnect wiring and cases, andsusceptibility of the wiring dnd cases to levels equal to the effects ofthese emissions. The interconnect wiring consists of all types of wiringincluding power wiring, signal wiring between equipments, and coax cablesbetween RF equipment and their associated antennas. The computer programwill generate an emission and susceptibility limit for each emitter and/orreceptor depending on circuit characteristics. The limits are set for each
156
input or output terminal of the equipment. The mechanics for generating9 these limits are described in the paragraphs on SGR.
The emitter limits are related to MIL-STD-461 limits in that the basicemission curves of MIL-STD-461 are adjusted by the computer program to applyto a specific equipment port. The receptor limits are based on the receptorcircuit bandwidth, threshold sensitivity levels, and the system environmentdue to the emitter effects.
The emission limits for equipment interconnect wires are specified interms of both broadband and CW current levels versus a given frequencyspectrum conducted on each wire. Each wire has unique limits. The suscep-tibility limits are plotted as the equivalent CW current levels versusfrequency that the receptor wires must tolerate. There are no limitsgenerated by the program directly relating to the radiated limits ofMIL-STD-461 for wiring.
Emissions from equipment cases are specified in terms of the radiatedfield existing 1 meter from the case. The limits are adjusted from thelimits of test method RE02 of MIL-STD-461 and are tailored to each casedepending on subsystem configuration. The case susceptibility limits areestablished by comparison of the receptor .ircuit thresholds within theequipment case to the fields existing outside the case. These fields arespecified by the system internal environment.
A.3.2 APPLICABLE TEST METHODS
A.3.2.1 Emission Tests[ Emission tests will consist of current measurements on the equipmentinterconnect wiring and fielj.d intensity measurements of the radiation fromequipment cases.
A3.2.1.1 Conducted Current Measurements - The most feasible means ofmeasuring the current on a non-coax wire without disturbing the circuitcharacteristics is with a current probe. Present current probe technologyallows calibrated current probe measurements although it is not expectedthat measurements for extraneous RF emissions on wires carrying uninten-tionally generated RF currents will be required above 1 GHz. Coax lineswill be measured either by direct connection to an RF receiver, or wherethe power levels are greater than the power handling capabilities of thereceiver, an RF power sampling device such as a directional coupler will beused to measure the RF current on the coax line.
Since the current limits are given for each equipment port, the currentmeasurement must be made on each individual wire connected directly to thatport (before any branching point). A precaution that must be observed whenS~using the current probe is that the maximum current point along the line
will vary with frequency when the line length approaches a significantportion of a wavelength. The current probe must therefore be moved along
157
the line to obtain a maximum reading becauae the SGR computes the maximumallowable current from the port without regard to any standing wave effects.
A.3.2.1.2 Conducted Current Test Setups - The physical configuration of thetest setup for conducted current measurements will be similar to that ofMIL-STD-462, Method CE03. Differences include possible elimination of the10 microfarad feedthru capacitors in the power lines, height of the testbundle above the ground plane, and cable lengths.
The 10 microfarad feedthru capacitors may be eliminated from the testsetup if a measurement of the ambient current on each power line shows thecurrent from the power source is below the test wire current limit by atleast 6 dB.
The height above the ground plane of the wire being measured can be anyconvenient height.
Cable lengths used for the test setup cao be any convenient length.The only limitation is the size of the test area.
A.3.2.1.3 Equipment Case Radiation - The test method for equipment caseradiation must relate to the computer generated test limits. The limitsare specified in terms of field strength versus frequency at a distance of1 meter from the test sample. The measurement method will therefore bethe same as that of MIL-STD-462, Test Method RE02.
Case radiation does not, of course, include wire radiation; thereforethe test setup must reflect this condition. This means that the wiringmust be electromagnetically isolated from the measuring antenna. Analternative is that the test requirements are considered to be satisfiedif the combined radiation from the case and wiring is below the caseradiation limits.
A.3.2.2 Susceptibility Tests
Susceptibility tests will be performed to measure the susceptibilityof equipment to a specified value of current impressed on interconnectwiring and to a radiation field impressed on the equipment case. Inter-modulation tests for receivers are to be performed in accordance withMIL-STD-462, Method CS03. Frequency intermodulation products will beselected from the utility program for intermodulation.
A.3.2.2.1 Conducted Suscptjibility - Conducted susceptibility tests willbe accomplished by inducitg a current on each specified receptor wireleading into an equipmept. The induced current levels are to be thosespecified in the suscepiibility test limit for that receptor.
A, 158
I- TV .0-47:_
The most feasible method for inducing the specified current levelsinto non-coax wires is the current probe method used in measurement ofconducted current emissions. This method eliminates the need to break intothe receptor circuit directly which would change the circuit parameters. Asecond current probe can be clamped around the receptor wire close to theequipment input terminal to measure the injected current. The properinjection point for the source probe is that point along the line whichprovides the proper current level at the equipment input terminal with theJeast amount of power applied to the probe. This is required when the linelength approaches a significant pcrtion of a wavelength.
A.3.2.2.2 Radiated Susceptibility - Radiated susceptibility tests are tobe performed to determine the susceptibility of the equipment internalcircuitry to a radiated field at the equipment case. The method fordeveloping this field is similar to that for MIL-STD-462, Test Mp~thod RS03.
The field generating setup ca.a be calibrated to produce a specified fieldat a distance of 1 meter from the transmitting antenna as in MIL-STD-462or at a distance specified by the user. The primary consideration is thefield level at the equipment case.
The test limits apply only to the levels existing at the equipmentcase but the wire bundl,-s caa be included with certain ccnditions applied.The wire bundles can bQ included if the combination of the case and wirebundle susceptibility te.oý show no effects from the field specified forthe case alone.
1
S! 159
A.3.2.3 Test Instrumentation
The test instrumentation to be used for these test measuremants is thestandard equipment used in MIL-STD-462 testing. The test methods foremission tests can be easily accomplished with automatic or semiautomaticmeasurement techniques. Test probes and antennas are readily available inmost test labs. The conducted measurements could be accomplished withoutsetting up in a shielded room but a shielded room is necessary for theradiated measurements.
A.4 SAMPLE TEST PROCEDURE
A.4.1 The following test procedure is presented as an example of the appli--cation of the SGR test methods to a subsyst:em unit. A single unit procedureis sufficient illustration since the SGR specifies individual wire currentlimits and individual box radiation.
A.4.2 OBJECTIVES AND SUCCESS CRITERIA
The objectives and success criteria of these tests are as follows:
a. Conducted Current Measurements - to determine whether extraneouscurrent is present on each of the external interconnect wires to theunit. The success criteria is that these extraneous emissions do notexceed the levels specified in Figures A-5 thru A-12.
b. Conducted Susceptibility Measurements - to determine whether thereis a response in the output of the receiver when the specified currentlevels, Figures A-in and A-16 ao e applied to the RF and power wire,respectively. The success criteria is the range and bearing indicatordoes not lose lock.
c. Case Radiated Emission - to determine whether the radiation fromthe case exceeds the case radiatiun limits of Figures A-13 and A-14.The success criteria is that the case radiation is less than thespec limits.
d. Case Radiated Svsceptibility - to determine whether there is areceiver output response when the case is subjected to a radiatedfield at the levels specified in Figure A-17. The success criteriais the range and bearing indicator does not lose lock.
A.4.3 TEST SAMPLE DESCRIPTION
The test sample is an airborne TACAN R/T unit. It has a transmitterand receiver packaged in a single unit. For the purposes of this exampleit is assumed that there are 5 wires interfacing with the unit. Theseconsist of 1) RF coax to upper antenna, 2) Audio output, %) Heading output,4) Primary power input, ,and 5) Bearing output. The audio (output of thereceiver is fed to a speaker for a convenient aural indication.
160
_______-___ -fq 1- pw
I4I
A.4.4 INSTRUMENTATION
All measurements shall be made with instruments whose accuracies conformto acceptable laboratory standards, and which are appropriate for measure-ment of the parameter concerned. The accuracy of the instrument and testequipment shall ue verified periodically utilizing acceptable calibrationprocedures as defined by MIL-C-45662A, "Calibration System Requirements."
A.4.4.1 Placement and Selection of Measuring Antennas
Each face of the test sample shall be probed with a 3-inch electrostaticprobe to determine the localized area(s) producing maximum emission orsusceptibility. Those areas shall be located 1 meter from the applicabletest antenna. Probing shall be performed using a spectrum analyzer todetermine the worse case condition, The probe shall be oriented for maximumpickup approximately 5 cm from the surface of the test sample.
When performing radiated emission measurements, no point of tha measur-ing antenna shall be less than 1 meter from the walls of the enclosure orobstruction.
For susceptibility measurements no point of the field-generating andthe field-measuring antennas shall be less than 1 meter from the walls ofthe enclosure or obstruction.
For radiatea emission measurements between 25 and 200 MHz, the biconical) antenna shall be positioned alternately to measure the vertical and horizontalcomponeats of the emission. For radiated susceptibility measurements be-tween 20 and 200 MHz, the biconical antenna shall be positioned so as togenerate alternately vertical and horizontal fields.
A.4.4.2 Measuring Frequencies
The entire specified frequency range for each applicable test shall bescanned. Measurements shall be taken at not less than three frequenciesper octave representing the maximum indications within the octave. Allmeasurements will be made using the peak detector function of the measure-ment receiver.
A.4.4.3 Ground Plane
A copper ground plane which is 0.75 nm thick and 4.80 square meters inarea with a width of 90 cm (minimum) is required for performing the testsdescribed herein. The ground plane shall be bonded at both ends to theshielded enclosure and at intervals between the ends no greater than 90 cmapart.
161
A-A.4.4 bonding
The test sample shall be bonded to the ground plane 1)y the game meanswith which it Is bonded to the aircraft structure.
A.4.4.5 2onding Measuring Instruments
Interference measuring instruments shall be bonded to the ground plane o4or shielded enclosure with the ground clip on the power cord. The couater-poise on rod antennas shall be bonded to the ground plane with a strap ofsufficient length to permit the antenna to be correctly positioned. Thestrap shall be as wide as the counterpoise. This applies to rod antennasmounted on a separate counterpoise. The interference measuring instrumentshall be physically grounded to the ground plane with only one connection.If the cooper strap is used, neither the ground clip, the ground terminals,nor the power supply shall be connected at any test frequency. When tunedand calibrated for a measurement, and loaded with a dummy antenna, themeasuring instrument shall show no change from the internal backgroundduirng on-off operation of the test sample.
A.4.4.6 Operator Position
No part of the operator's body shall make electrical contact with theground plane during EMI tests. In addition, during radiated interferencetests, the position of the operator's body shall be such as to produceminimum effect on the measurement being made, insofar as practical.
A.4.5 Test Procedure
For the purpose of this example, it is assumed that a performance testhas been completed prior to the start of EMI tests.
A.4.5.1 Conducted Emission (non-coax lines)
A.4.5.1.1 Connect a test setup as shown in Figure A-1 and perform afunctional check on the test sample.
A.4.5.1.2 Clamp the current probe around the AC power input wire and setthe spectrum analyzer to sweep from 30 Hz to 50 MHz. Search along thepower line for the maximum r.eading.
A.4.5.1.3 Record the peak instantaneous and average current spectrum onthe power wire from 30 Hz to 50 Miz.
A.4.5.1.4 Conducted emissions in excess of the limits shown in Figures A-5and A-o shall not appear on the power wire.
A.4.5.1.5 Repeat the conducted current measurements for the heading,and bearing and audio wires.
A.4.5.1.6 Conducted emissions shall not exceed the limits shown inFigures A-7 and A-4 for the heading wire, Figures A-9 and A-10 for theaudio wire.
162
A.4,5.2 Conducted Emission (coax lines)
A.4.5.2.l o'nnect a setup as shown in Figure AM2 for the TACPi T/R modeand select chani-l 50.
A.4.5.2.1.1 Set up tn'i. recording system to cover the frequency range of12 KHz to 12.4 GHz and ricord the peak instantaneous and average current.
A.4.5.2.1.2 Tne conducteC emissions shall not exceed the limits shown inFigures A-11 and A-12.
A.4.5.3 Equipment Case Radiated Emissions
A.4.5.3.1 Connect the test setup as shown :n Figure A-3 for the T/Rmode and select channel 50.
A.4.5.3.2 Probe each face of the test sample at frequencies from 50 KHz to10 CHz to determine the location of maximum radiation from the case. Orientthe test sample so that the test antenna is directed at the maximum radis-tion point.
A.4.5.3.3 Reýcord the peak instantaneous and average electric radiated fieldemission from 50 Kllz to 10 GHa.
A.4.5.3.4 If the recorded values are below the limits of Figures A-13 & A-14,the sample is considered acceptable, if the values are above the limits, thetest sample loads chall be located outside the shielded room and the wiresrun through a shield from the test sample to the shieldetd room• ,•all as
shown in Figure A-3.
A.4.5.3.5 Rerun the radiated tests for compliance to the limits.
A.4.5.4 Conducted Susceptibility
A.4.5.4.1 Connect a test setup as shown in Figure A-4 for the T/R mode.Set to channel 50 and adjust the volume control for a discernable level.Adjust the Beacon Simulator fur a -90 dBm signal.
"A.4.5.4.2 Inject the signal levels and frequencies indicated in Figure A-15
for the coax line.
A.4.5.4.3 The interfering signal shall not cause the Range Indicator orBearing Indicator to lose lock.
A.4.5.4.4 With the TACAN still in the T/R mode, inject the signals ofFigure A-16 into che primary power line.
163
SA.4.5.4.5 The interfering signals shall not cause the Range Indicator or
A.4.5.5 Radiated Susceptibilirv
A.4.5.5.1 Connect a test setup as shown in I*..gure A-3 for the T/R mode.Set to channel 50 and adjust the volume control for a discernable level.Adjust the Beacon Simulator for a -90 dBm slgna:.
A.4.5.5.2 Calibrate the susceptibility source ',y substituting a calibratedreceiving antenna in place of the test sample and recording the transmittedpower required to establish the field intensity levels at the test sampleas shown in Figure A-17.
A.4.5.5.3 Aim the source antenna at the test sample face established as thehighest emission location.
A.4.5.5.4 Establish the required fieid intensity levels and observe that
the bearing and range indicator does not lose lock.
A.4.5.5.5 If degradation is observed, change the test setup to that ofFigure A-3 with the test loads and power lines located outside the shieldedroom and connected from the room wall to the test sample through an overallshield. Repeat the test.
164
-4 71 __ ,__ ,'..-.|-I
II
. • Ground Plane
•.Primary Power Ts apeNnCa
•-•--~Sina W~s ape"• ires
<_• To EMI Recording
~System
To Coax Loads or UMI
Recording System
FIGURE A-1CONDUCTED EMISSION TEST SETUP
:165
A
s..
EMITest Rel Record
Sample Atn Ntwk System
I~ RF
L----------- Load
FIGURE A-2BLOCK DIAGRAM KEY-DOWN TESTS 07.O
166
Shield Room Wall
-Test Sample Test Sample
rF/ Loads Loads andPower
I To EMI Recording
Source
Note: Dashed lines indicateoptionalMconn ctions.
ysUse ovo olignal
FIGURE A-3RADIATED EMISSION/SUSCEPTIBILITY TEST SETUP
OG73 1075 41
167
• FTest Sample Loads
S~Ground Plane
RecordingSystem ,
To Signal
Coax LinesGerao
to SignalGenerator
FIGURE A-4CONDUCTED SUSCEPTIBILITY TEST SETUP
OP73 1075 42
168
T M
120
40
0 WL100 1K 10K 100K iM 1oM looM
Frequency- Hz
FIGURE A.5EMI NARROWBAND SPECIFICATION LIMIT
TACAN POWER GP3 10,7543
140 _ _ _ _ _
120
100
M 60
40.
20 L-LJ III[10 100 K 10K 100K 1M ioM looM
Frequency. Hz
FIGURE A-6EMi BROADBAND SPECIFICATION LIMIT
TACAN POWER [p?3 107%44
169
30
20
A
10
1 10 100Frequency - MHz
FIGURE A-7
EMI NARROWBAND SPECIFICATION LIMITTACAN BEARING AND HEADING
GP73 1075 55
100 T
~80 __ _ _
Aw, 60
• ~40 1 ! 1 ,, 1 _
100K 1 10 100Frequency
FIGURE A-8EMI BROADBAND SPECI FICATION LIMIT
TACAN BEARING AND HEADINGOP73 1075 54
170
I50
40
30
A
20 -_ _ _ _
10-____ _
0 l i I I I II I I i i I I I
10K O•OK IM lOM lOOMFrequency - Hz
FIGURE A-9
EMI NARROWBAND SPECIFICATION LIMITTACAN AUDIO
120GP73 1Q75 53
S~120
N 100
No Reqtirement -
S80
" 60
4oWLi0.1 K IK 10K 100K 1M 10M looM
Frequency - Hz
FIGURE A-10EMI BROADBAND SPECIFICATION LIMIT
TACAN AUDIOGP73 1075 52
171
i4.1
140
100
-o40 -_ _ _
20
-20 - _ _ _ _ _ _ _ _ _ _ _ _ _ _
10K 100K iM lOM 100M 1G 10GFrequency - HzIiFIGURE A-11
EMI NARROWBAND SPECIFICATION LIMITTACAN RF
GP73-107 51
100 _____ _
80
, 60
~40A
20
-20, I I 1 1 i i10K 100K 1M 100M zm G !G
Frequency - Hz
FIGURE A-12EMI BROADBAND SPECIFICATION LIMIT
TACAN RF1723 1075 SO
S~172
60
50
A
Z 40 ,
o 30
20
100K iM lOM loom 1GFrequency - Hz
FIGURE A-13EMI NARROWBAND RADIATION LIMIT
TACAN CASEGP73 107S49
A 173
-- --------
90
70.
S60
50 _ _ _ _ _
40 I I . I III I III100K iM loM looM 1G
Frequency - Hz
FIGURE A-14EMI BROADBAND RADIATION LIMIT
TACAN CASE,IP73 1075 48
i1
174
-i
,i)
120
100 -- _ _ _ _
s<60
S40"A0
20
10K 100K IM 10 109lom 1 G 10G I100GFrequency - Hz
FIGURE A-15CONDUCTED SUSCEPTIBILITY LIMIT
TACAN RFGP73 1075 47
160 -
140
120
100
S80 -
• 60. . ..
40 ,'
20 ! _
10 100 1K 10K 100K IM lOM 100M 400M
Frequency - Hz
FIGURE A-16
SUSCEPTIBILITY LIMITTACAN POWER
175
'IRVI
110
:1.100A
90 000_ _
100K ii oom loom IG lOGFrequent y - Hz
FIGURE A-17
RADIATED SUSCEPTIBILITY LIMITTACAN CASE GP73 10756 AS
176
K7 ~
APPENDIX B
MERGE UTILITY PROGRAM
B.1 GENERAL
The supplementary computer program called MERGE is supplied with the IEMCAPprogram for the purpose of manipulating ISF files. It provides the capabilityof combining the data on two existing ISF files, as directed by the user, toform a composite file consisting of selected portions of the original files.
For this process, one of the two original files is designated as the Masterfile and the other as the Modify file. The new file created is called theUpdated file. During the MERGE run, all data on the Master file is automati-cally written on the new Updated file unless instructions are given for thisdata to be deleted. Conversely, none of the data on the Modify file is writtenon the Updated file unless the appropriate add commands are given to MECZE.
The data input for che MERGE program consists of fixed format statementswhich define the data to be deleted from the Master file and the data to beadded from the Modify file. The only provisions foz insertion of new data
I (data not on either existing file) is the option of writing a new file titleand/or new remarks.
B.2 DATA ORGANIZATION
For purpo3es of MEI.dE, the ISF data is organized into data blocks (sectionB.3.1). These data block" are subdivided into data sets or parameters whichhave ID'q which are used to specify the data to be manipulated. That is, theonly manner in which data may be divided for manipulation by MERGE is by theID's which identify the various data sets or parameters as described in sectionB.3.2. Any changes in ISF data which do not correspond to these data sets mustbe performed via an IDIPR modify run.
B.2.1 SIZE LIMITATIONS
The maximum dimensions of the Updated file data (except equipment data andwire bundle data) must be the same as the corresponding limits for the IENCAPprogram (see sectiou 5.3). Any instructions to the MERGE program which attemptto add data sets larger than these dimensions to the Updated file will producean error. There is no limitation to the rumber of equipments or wire bundleswhich may be written on the Updated file. However, it should be noted that ifthe IEMCAP size limitations for equipment or wire bundles is exceeded, theUpdate file cannot be used as an old 1SF for an IEMCAP run.
B.3 INPUT DATA
The MERGE program is designed to accept user inputs in the form of fixedformat only. These instructions may be either commands to add or delete dataor they may be instructions to insert a new ISF title or remark.
The delete command (D=) is used to delete data from the Master ISF as themodified ISF is written by MERGE. Similiarly, the add command (A= ) is used toadd data to the Updated ISF from the Modify ISF. In cases where the data may
177
I
have many different sets of values (as for example in the case of aperture data),the Updated ISF is written from the Master ISF aperture data (less the deletedapertures) plus the apertures added from the Modify ISF. When the data may haveonly one value (for example, the EMI margin print limit) either the command todelete the Master ISF data or to add the Modifýy ISF data have the effect ofreplacing the Master file data with the Modify file data in the Updated file.In this case it is not necessary co give both the delete and add commands(al'hough this is permissible) as either of these commands suffices.
B.3.1 DATA BLOCKS
For purposes of user instructions to MERGE, the ISF data has been dividedinto data blocks which have title records. These title records indicate thatthe data immediately following belongs to that data block. Certain data blocksalso have ending markers which mark the end of the data block.
The data blocks may have any order. Also, instructions within a datablock may be in any order. However, each block must be preceded by its titlerecord and all data blocks which have ending markers must be terminated with
this end record.
The data blocks are divided as shown in Table B-1. The data block titles(and end markers) are required only for those data blocks which have add ordelete commands. The only card which is always required is the end of datacard. This card has the form
END DATA
and must be physically the last data card. If this card is used as the onlyK data input, the Updated file becomes a copy of the Master file.
B.3.2 INPUT DATA FORMATS FOR MERGE
The format of all MERGE input data is given in this paragraph. All inputsmust begin in Column I and no blanks are permitted except for the blanks whichare a part of the system parameter identifications or the data block title
i i recordq or end markers.
B.3.2.1 SYSTEM DATA
As shown in Table B-I, the title records for new ISF ,title ,Oata (GEW TITLE)aad for new remarks data (NEW REMARKS) do not have an end marker while all OtherSyrtem data blocks have both title records and end markers. The title records(and end markers) are required only for those data blocks which hzc add ordelete commaands. If there is system data of any type, the end of chc systemdata is marked by an end of system data card. This card has the form
END OF SYSTEM
If there is no system data, this card is nor required.
i28
TABLE B-i
MERGE DATA BLOCKS
DATA BLOCK END MARKER
SYSTEM DATA NEW TITLENEW REMARKSSYSTEM,BASIC END BASICSYSTEM, APERTURES END APERTURESSYSTFM,ANTENNAS END ANTENNASSYSTEM, FILTERS END FILTERSSYSTEM,WCT END WCTSYSTEM, FIELDS END FIELDS
SUB-SYSTEM DATA EQUIPMENTS END EQUIPM4ENTSWIRE BUNDLES END BUNDLES
4
I÷I2
- ---.
INPUTS FOR TITLE DATA -
Two options are possible for the title on MERGE created ISF. Either theMaster file title may be used or a new title may be written. To use the Maste.file title, no input to MERGE is required. For a new title the following inputcards are required:
NIW TITLEL~nnn
New ISF title (up to 160 cha.:acters)
where nnn is the exact character length of the title record, including blanks.A maximum of 80 characters per card are allowed but the total number ofcharacters must not be greater than 160 (2 cards). For example, the title"Updated ISF fox Aircraft Test Case" could be written by the following cards.
NEW TITLEL=34
Updated ISF for Aircraft Test Case
INPUTS FOR REMARKS DATA -
Exactly the same options as described in the previous paragraph for titledata apply for the remarks data. The Input cards required for the insertion oftt.c new remarks are:
NEW REMARKSL=nnnNew remarks for !SF (up to 400 characters)
where nrnn is the exact zharacter length of the remarks record includingblanks. A maximum of 80 characters per card are allowed. The record may becontinued for a total of 5 cards (400 characters).
INrUTS FOR BASIC SYSTEM DATA -
The data described in Sections 5.7.4.1 through 5.7.4.3 are classified asbasic system data for purposes of MERGE. If it is necessary to write basicsystem data from the Modi1fy ISF instead of the Master ISF, two instructions arenecessary. First, the data block title (SYSTEM, BASIC) must be given followedby add (or delete) commands for every parameter to be written from the Modifyfile. Either the command to add data from the Modify file (A=) or the commandto delete Master file data (D=) causes the specified data to be written fromthe Modify file.
The general form for replacing the Master file basic system data with theModify file data is
180
'4
TABLE B-2
j BASIC SYSTEM DATA
Parameter Identification Explanation
SYSTEXTYPE System TypeLONGITUDE LongitudeLATITUDE LatitudeALTITUDE AltitudeASM Adjustment Safety MarginEMPL EMI Margin Print LimitSIGMA ConductivityEPSILON Relative PermittlvityCON NOS LIM Conical Nose Limit"FUSE RAD Fuselage RadiusCORE RAD Core RadiusCNTR WL Waterline of CentroidBOT WL Waterline of BottomMOD COD Model CodeWNGRTBL Wing Root Butt LineWNGRTWL Wing Root WaterlineWNGRTFFS Wing Root Fuselage Station (forward Edge)WNGRTAFS Wing Root Fuselage Station (Aft Edge)WNGTPBL Wingtip Butt LineWNGTPWL Wingtip Waterline
JWNGTPFFS Wingtip Fuselage Station (Forward Edge)WNGTPAFS Wingtip Fuselage Station (Aft Edge)
181
$1 SYSTEM, BASICD-basic parameter #1D-basic parameter #2
0
END 3ASIC
where the basic parameters are any of the parameters given in Table B-2 (any orall of the instructions D- could be replaced by A= if desired).
The command END BASIC marks the end of basic system data and is requiredif the SYSTEM,BASIC title is used.
INPUTS FOR APERTURE DATA - I
The Aperture Data (Sectior 5.7.4.4) is manipulated by MERGE in blocks ofdata coeresponding to the aperture ID's. MERGE writes all aperture data fromthe Maeter file, except that deleted by a D=command, to the Updated file.It then writes the aperture data (if any) which is added from the Modify fileby add command,.
The general form for this is
SYSTEM ,APERTURES! ! D-Master File Aperture ID #1
D-Master File Aperture ID #20
0
0
A=Modify File Aperture ID #1A=Modify File Aperture Tn •i2
0
0j 0END APERTURES
where the aperture ID's are the 5 letter alpha code apeiture ID's in the Masterane Modify files.
INPUTS FOR ANTENNA DATA -
The Antennr Data (Section 5 .. &.5) is handled in the same manner as theaperture data previously described.
i The general input format for these instruction5 is
[1 182
IR
SYSTEM,ANTENNAS•)-Master File Antenna ID #1D-Master File Antenna ID #2
00
0
A-Modify File Antenna ID #1A=Modify File Antenna ID #2
0
0
0
END ANTENNAS
IhNUTS FOR PILTER DATA -
Filter Data (Section 5.7.4.6) is manipulated according to the filter ID asdescribed in the previous sections. The general input format is
SYSTEM,FILTERSD=Master File Filter ID #1D=Master File Filter ID #2
0
0o
A=Modify rile Filter ID #1A=Modify File Filter ID #2
0
0
END FILTERS
INPUT FOR WIRE CHARACTERISTICS TABLE DATA -
Wire Characteristics Table Data (Section 5.7.4.7) is manipulated accordingto Wire type ID (see previous sections).
The general input format is
SYSTEM,WCTD=Master File Wire Type ID #1D=Master File Wire Type ID #2
o
0
A=Modify File Wire Type ID #1A=Modify file Wire Type ID #2
0
0o
E.AD WCT
183
INPUTS FOR ENVIRONMENTAL FIELD DATA -
A The Environmental Field Data (Section 5.7.4.8) for the Updated ISF is
written either in total from the Master file (default) or in total from theModify file. The input instruction for use of the Modify file environmentalfields is
SYSTEKM,FIELDSD-EVFLDSMR FIELDS
B.3.2.2 SUBSYSTEM DATA
The MERGE, all data pertainiug to equipment and wire bundles is classifiedas subsystem data. If any instructions for merging this subsystem data aregiven, these instructions must be preceaed by a subsystem card and followed byan end of subsystem card. These cards have the form
SUB-SYSTEMEND OF SUB-SYSTEM
where all cards with instructions for merging equipment and bundle data must bebetween these two cards.
INPUTS FOR EQUIPMENT DATA -
The Equipnent Data (Section 5.7.5.2) can be manipulated by MERGE only inblocks containing all data associate 4 with a particular equipment. Thisincludes all port data, including port spectra, for the equipment in question.
The basic form for the instructions for merging equipment data is asfollows
SEQU iPMENTSD=Master File Equipment ID #iD=Master File Equipment ID #2
0
0
A-Modify File Equipment ID #lA-Modify File Equipment ID #2
0
0
0
END EQUIPMENTS
where all thp ID's following the D= are deleted from the Master file and allID's following the A= are added from the Modify file as the Updated file iswritten. The title record, EQUIPMENTS, and che end of data block marker, ENDEQUIPMENTS, are required only if equipm.ent records are added to (or deletedfrom) the Master file.
184
INPUTS FOR BUNDLE DATA -
The Bundle Data (Section 5.7.6) is merged in the same manner as theEquipment Data. The form for the instructions is
WIRE BUNDLESD=Master File Bundle ID #1D-Master File Bundle ID #2
0
0
oA=Modify File Bundle ID #1A=Modify File Bundle ID #2
0
END BUNDLES
B.E3.2.3 EXAMPLE INPUT}" An example of a possible data input to MERGE is as follows:
j TABLE B-3
EXAMPLE INPUT
INPUT COLUMNS
NEW TITLE 1-9L=25 1-4UPDATED INTRA-SYSTEM FILE 1-25SYSTEM, BASIC 1-12D=ASM 1-5D=EMPL 1-6END BASIC 1-9SYSTEM,ANTENNAS 1-15D=UHFCM 1-7
# A=TACAN 1-7END ANTENNAS 1-12SYSTEM,FILTERS 1-14A=FLTR8 1-7END FILTERS 1-11END OF SYSTEM 1-13SUB-SYSTEM 1-10EQUIPMENTS . 1-101DfINPYL 1-7A=DISP 1-6A-CENTL 1-7
j END EQUIPMENTS 1-13WIRE BUNDLES 1-12D-BNDL2 1-7
I END BUNDLES 1-1004END OF SUB-SYS.TF 1-17END DATA 1-8
185
B.4 OUTPUTS
The KERGE program printed output consists of a copy of the Updated ISFfile created by the run (plus possible error messages - see Paragraph B.5).If a comparison of the data on the old files (Master and Modify) with thaton the Updated file is desired, the appropriate JCL cards may be insertedin the MERGE deck to give a printout of the old files. Alternatively, theUpdated file can be used for an IDIPR run with a report requested. Thisgives a formatted surnary of all data on the ISF.
B.5 ERRORS
Several types of errors may be encountered in running the MERGE program.These types are:
1. Data which is formatted incorrect.
2. Unrecognizable statements in input data.
3. Omission of required data cards such as an end marker for a data blockor an END OF DATA card.
4. Creation of an ISF which is not a compatible system for IEMCAP runs.
Type 1 errors simply cause a read error in MERGE. Cards which have type 2errors are deleted and have no contribution to the merging instructions. Type 3errors cause fatal errors in the data input. An error message to this effectis printed by MERGE when this error occurs.
The errors classified as type 4 are not detectible by MERGE. Thus, theerrors of this type simply create an ISF which i3 incompatible for an IEMCAPrun. These errors are caused by adding (or deleting) data in such a way as toform a nonphysical system. Checks for type 4 errors can be made only by usingthe Updated file for an IDIPR run.
186
o1
FT TR 77 Z i- F *-7
APPENDIX C
. IM43D UT IL ITY PROGRAM
C.1 GENERAL
A suprlemental computer program,' IHOD is supplied with IEMCAP to enable~ Ian F14C enghieer to calculate possible latermodulation frequency situations on
-:~ 1USAF systems. The program can be used for both transmitter and receiver i.nter-modulation.
A possible application of this program might be for a flying comraand postutilizing a number of transmitters simultaneously. For instance, suppose thereare three transmitters of frequencies of 115 MHz, 120 MHz, and 125 MHz respec-tively, where the latter two transmitters are higher power than the former.There is a possible third order combination between the latter two producingan output at 115 MHz.
The program has the capability of analyzing five transmitter frequency
intervals to any order of mix, for up to ten frequency intervals f interest.
C.2 INPUTS
The required inputs to INOD are:
o Number of transmitters (maximum = 5)
o Lower and upper ends of emission channels or tuna.-le ranges"o Highast order intermodulation combination to be consideredo Number of frequency intervals for which intermodulation combinations
are to be calculated (maximum = 10)o Upper and lower ends of the frequency intervals described above
The program then proceeds to calculate all possible intermodulation Zom-binations of interest and prints these in a hierarchical fashion up to the maxi-mum order desired. In addition, orders of each transmitter frequency that gointo the intermodulation order are printed along wituh the appropriate plus orminus sign as illustrated below:
TABLE C-1
THIRD ORDER INTERMODULATION INDICES CONSIDERED FOR TWO TRANSMITTERS
0 +31 21 -22 -1
"3 0
The input to the program uses a fixed field form described below:
187
-Van'"
TABLE C-2
INPUT CARD FORMATS
Card Format Description
NT 15 Columns 1-5 Number of transmitterfrequency intervals
Intervals F9.2 Columns 1-9 Lower end of frequencyinterval
F9.2 Columns 10-18 Upper end of frequencyinterval
NOR 15 Columns 1-5 Maximum order to beanalyzed
NR 15 Columns 1-5 Number of frequency inter-vals to be analyzed
Intervals F9.2 Columns 1-9 Lower end of frequencyinterval
F9.2 Columns 10-18 Upper end of frequencyinterval
The output contains the order of mix, lower and upper ends of the inter-modulation frequency intervals and the indices that go into the calculation.
A sample input case is shown below:
TABLE C-3
SAMPLE INPUT DATA
Card Input
NT 5Interval 122., 125.Interval 118., 125.Interval 127., 130.Interval 50., 75.Interval 132., 140.NOR 3NR 2Int-rval 225., 275.Interval 350., 400.
The output for this input case is in the following form:
188I-
oiS.
TABLE C-4
SAMPLE OUTPUT
ORDER FLOW FUIGE M N P R S
2 264.00 280.00 0 0 0 0 22 264.00 280.00 0 0 0 0 -22 259.00 270.00 0 0 1 0 1
r31
If
189
'-&. I
,9 V
MISSION
1 Rome Air Development Center
RALC is the principal AFSC organization charged with
*plaining and executing the USAF exploratory and advanced
i • developmentt programs for electromagnetic intelligence* technioues, reliability and compatibility techniques for
electronic systems, electromagnetic transmission andreception, ground based surveillance, ground
* communications, information displays and informationprocessing. This Center provides technical or
* management assistance in supg~ort of studies, analyses,development planning activities, acquisition, test,I evaluation, modification, and operation of aerospacesystems and related equipment.Ai
S. I I
Source AFSCR 23-50, 11 May 70
AFFC-AJndfrw AFB Md 147
t